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Idaho drought conditions

245

Drought Severity and Coverage Index for Idaho, 0 (nothing dry) to 500 (all in exceptional drought), October 6, 2026

+2.9% since October 7, 2025 (238); −35.0% since October 5, 2021 (377); +137.9% since October 4, 2016 (103)

Source: National Drought Mitigation Center, University of Nebraska-Lincoln, U.S. Drought Monitor. Data period October 6, 2026. Published .

The U.S. Drought Monitor's single-number weekly drought index, from 0 (no abnormal dryness or drought) to 500 (entirely in D4, Exceptional Drought): the sum of the D0-D4 cumulative area percentages.

Change and comparison

The series high is 396 on November 11, 2003 and the low is 0 on January 4, 2000.

Among 50 states and the District of Columbia, Idaho ranked 10th highest (tied with Texas) on October 6, 2026. Oklahoma was highest at 336 and Rhode Island lowest at 0.

Among Idaho and its 6 neighboring states, Idaho ranks 5th highest; Nevada is next above at 262 and Washington next below at 190.

Idaho's figure is 167.8% of the national figure of 146.

Among 44 Idaho counties on October 6, 2026, Twin Falls County was highest at 456 and Lemhi County lowest at 24.

Historical data

Idaho drought conditions, January 4, 2000 to January 6, 2026Idaho drought conditions, January 4, 2000 to January 6, 2026. Idaho: 0 on January 4, 2000, 245 on October 6, 2026.0100200300400200020102020IdahoIndexIdaho drought conditions, January 4, 2000 to January 6, 2026Idaho drought conditions, January 4, 2000 to January 6, 2026. Idaho: 0 on January 4, 2000, 245 on October 6, 2026.0100200300400200020102020IdahoIndexIdaho drought conditions, January 4, 2000 to January 6, 2026Idaho drought conditions, January 4, 2000 to January 6, 2026. Idaho: 0 on January 4, 2000, 245 on October 6, 2026.0100200300400200020052010201520202025IdahoIndex

Source: National Drought Mitigation Center, University of Nebraska-Lincoln, U.S. Drought Monitor. Published .

Data table (1397 rows)
PeriodIdaho (index)
January 4, 20000
January 11, 20001
January 18, 20001
January 25, 20005
February 1, 20000
February 8, 20000
February 15, 20000
February 22, 20000
February 29, 20000
March 7, 20000
March 14, 20000
March 21, 20000
March 28, 20000
April 4, 20000
April 11, 20003
April 18, 20001
April 25, 20000
May 2, 20000
May 9, 20000
May 16, 20000
May 23, 20000
May 30, 20000
June 6, 20000
June 13, 20000
June 20, 20000
June 27, 200028
July 4, 200083
July 11, 2000108
July 18, 2000142
July 25, 2000141
August 1, 2000144
August 8, 2000146
August 15, 2000160
August 22, 2000177
August 29, 2000183
September 5, 2000160
September 12, 2000160
September 19, 2000159
September 26, 2000162
October 3, 2000158
October 10, 2000157
October 17, 2000125
October 24, 200086
October 31, 200041
November 7, 200031
November 14, 200024
November 21, 200021
November 28, 200021
December 5, 200013
December 12, 200011
December 19, 20000
December 26, 20000
January 2, 20010
January 9, 200113
January 16, 200113
January 23, 200176
January 30, 200180
February 6, 200180
February 13, 2001169
February 20, 2001171
February 27, 2001185
March 6, 2001190
March 13, 2001244
March 20, 2001251
March 27, 2001251
April 3, 2001273
April 10, 2001272
April 17, 2001272
April 24, 2001272
May 1, 2001272
May 8, 2001272
May 15, 2001280
May 22, 2001280
May 29, 2001280
June 5, 2001282
June 12, 2001282
June 19, 2001298
June 26, 2001300
July 3, 2001300
July 10, 2001300
July 17, 2001300
July 24, 2001300
July 31, 2001334
August 7, 2001334
August 14, 2001335
August 21, 2001350
August 28, 2001351
September 4, 2001357
September 11, 2001362
September 18, 2001362
September 25, 2001363
October 2, 2001363
October 9, 2001363
October 16, 2001363
October 23, 2001363
October 30, 2001363
November 6, 2001363
November 13, 2001363
November 20, 2001363
November 27, 2001363
December 4, 2001340
December 11, 2001336
December 18, 2001334
December 25, 2001326
January 1, 2002326
January 8, 2002303
January 15, 2002271
January 22, 2002267
January 29, 2002231
February 5, 2002230
February 12, 2002225
February 19, 2002225
February 26, 2002222
March 5, 2002203
March 12, 2002182
March 19, 2002165
March 26, 2002165
April 2, 2002164
April 9, 2002164
April 16, 2002141
April 23, 2002142
April 30, 2002141
May 7, 2002138
May 14, 2002139
May 21, 2002138
May 28, 2002135
June 4, 2002130
June 11, 2002137
June 18, 2002148
June 25, 2002150
July 2, 2002167
July 9, 2002170
July 16, 2002183
July 23, 2002185
July 30, 2002204
August 6, 2002217
August 13, 2002235
August 20, 2002257
August 27, 2002256
September 3, 2002257
September 10, 2002253
September 17, 2002254
September 24, 2002255
October 1, 2002271
October 8, 2002272
October 15, 2002271
October 22, 2002272
October 29, 2002272
November 5, 2002302
November 12, 2002299
November 19, 2002300
November 26, 2002300
December 3, 2002298
December 10, 2002298
December 17, 2002300
December 24, 2002301
December 31, 2002292
January 7, 2003293
January 14, 2003327
January 21, 2003329
January 28, 2003323
February 4, 2003302
February 11, 2003301
February 18, 2003300
February 25, 2003281
March 4, 2003284
March 11, 2003262
March 18, 2003252
March 25, 2003251
April 1, 2003233
April 8, 2003222
April 15, 2003223
April 22, 2003223
April 29, 2003221
May 6, 2003193
May 13, 2003194
May 20, 2003191
May 27, 2003192
June 3, 2003188
June 10, 2003201
June 17, 2003200
June 24, 2003200
July 1, 2003210
July 8, 2003223
July 15, 2003252
July 22, 2003290
July 29, 2003344
August 5, 2003342
August 12, 2003343
August 19, 2003386
August 26, 2003388
September 2, 2003390
September 9, 2003386
September 16, 2003385
September 23, 2003387
September 30, 2003387
October 7, 2003389
October 14, 2003381
October 21, 2003380
October 28, 2003382
November 4, 2003380
November 11, 2003396
November 18, 2003393
November 25, 2003391
December 2, 2003389
December 9, 2003385
December 16, 2003384
December 23, 2003384
December 30, 2003357
January 6, 2004341
January 13, 2004303
January 20, 2004303
January 27, 2004294
February 3, 2004280
February 10, 2004277
February 17, 2004277
February 24, 2004277
March 2, 2004261
March 9, 2004261
March 16, 2004256
March 23, 2004257
March 30, 2004257
April 6, 2004261
April 13, 2004269
April 20, 2004284
April 27, 2004284
May 4, 2004300
May 11, 2004300
May 18, 2004301
May 25, 2004276
June 1, 2004269
June 8, 2004266
June 15, 2004265
June 22, 2004265
June 29, 2004265
July 6, 2004265
July 13, 2004265
July 20, 2004265
July 27, 2004266
August 3, 2004265
August 10, 2004265
August 17, 2004265
August 24, 2004256
August 31, 2004249
September 7, 2004248
September 14, 2004241
September 21, 2004240
September 28, 2004239
October 5, 2004239
October 12, 2004241
October 19, 2004241
October 26, 2004241
November 2, 2004241
November 9, 2004241
November 16, 2004241
November 23, 2004241
November 30, 2004239
December 7, 2004239
December 14, 2004220
December 21, 2004223
December 28, 2004223
January 4, 2005215
January 11, 2005247
January 18, 2005247
January 25, 2005253
February 1, 2005290
February 8, 2005298
February 15, 2005326
February 22, 2005326
March 1, 2005338
March 8, 2005338
March 15, 2005363
March 22, 2005363
March 29, 2005349
April 5, 2005342
April 12, 2005345
April 19, 2005337
April 26, 2005323
May 3, 2005321
May 10, 2005314
May 17, 2005298
May 24, 2005295
May 31, 2005295
June 7, 2005258
June 14, 2005224
June 21, 2005216
June 28, 2005216
July 5, 2005216
July 12, 2005216
July 19, 2005216
July 26, 2005216
August 2, 2005216
August 9, 2005214
August 16, 2005218
August 23, 2005214
August 30, 2005214
September 6, 2005213
September 13, 2005213
September 20, 2005211
September 27, 2005209
October 4, 2005201
October 11, 2005201
October 18, 2005196
October 25, 2005196
November 1, 2005196
November 8, 2005152
November 15, 2005151
November 22, 2005151
November 29, 2005143
December 6, 2005136
December 13, 2005136
December 20, 2005148
December 27, 2005123
January 3, 200672
January 10, 200643
January 17, 200640
January 24, 200618
January 31, 200618
February 7, 200617
February 14, 200617
February 21, 200617
February 28, 200617
March 7, 200617
March 14, 200617
March 21, 200617
March 28, 200617
April 4, 200613
April 11, 20060
April 18, 20060
April 25, 20060
May 2, 20060
May 9, 20060
May 16, 20060
May 23, 20060
May 30, 20060
June 6, 20060
June 13, 20060
June 20, 20060
June 27, 20060
July 4, 20060
July 11, 20060
July 18, 20060
July 25, 20065
August 1, 200619
August 8, 200660
August 15, 200663
August 22, 200660
August 29, 200659
September 5, 200677
September 12, 200677
September 19, 200683
September 26, 200683
October 3, 200683
October 10, 200667
October 17, 200667
October 24, 200667
October 31, 200661
November 7, 200626
November 14, 200626
November 21, 200625
November 28, 200625
December 5, 200626
December 12, 200622
December 19, 200631
December 26, 200631
January 2, 200731
January 9, 200735
January 16, 200735
January 23, 200735
January 30, 200736
February 6, 200737
February 13, 200744
February 20, 200744
February 27, 200734
March 6, 200734
March 13, 200734
March 20, 200735
March 27, 200751
April 3, 200752
April 10, 200767
April 17, 2007115
April 24, 2007109
May 1, 2007112
May 8, 2007112
May 15, 2007116
May 22, 2007116
May 29, 2007116
June 5, 2007116
June 12, 2007117
June 19, 2007117
June 26, 2007117
July 3, 2007127
July 10, 2007194
July 17, 2007198
July 24, 2007236
July 31, 2007271
August 7, 2007311
August 14, 2007319
August 21, 2007330
August 28, 2007330
September 4, 2007330
September 11, 2007330
September 18, 2007335
September 25, 2007334
October 2, 2007334
October 9, 2007332
October 16, 2007332
October 23, 2007311
October 30, 2007311
November 6, 2007311
November 13, 2007286
November 20, 2007275
November 27, 2007275
December 4, 2007240
December 11, 2007240
December 18, 2007239
December 25, 2007239
January 1, 2008239
January 8, 2008238
January 15, 2008221
January 22, 2008184
January 29, 2008184
February 5, 2008162
February 12, 2008161
February 19, 2008161
February 26, 2008161
March 4, 2008156
March 11, 2008156
March 18, 2008156
March 25, 2008157
April 1, 2008106
April 8, 200874
April 15, 200874
April 22, 200872
April 29, 200872
May 6, 200875
May 13, 200875
May 20, 200875
May 27, 200870
June 3, 200896
June 10, 200897
June 17, 2008107
June 24, 2008110
July 1, 2008110
July 8, 2008112
July 15, 2008111
July 22, 2008116
July 29, 2008116
August 5, 2008117
August 12, 2008117
August 19, 2008117
August 26, 2008117
September 2, 2008117
September 9, 2008117
September 16, 2008117
September 23, 2008111
September 30, 2008111
October 7, 2008111
October 14, 2008111
October 21, 2008134
October 28, 2008134
November 4, 2008134
November 11, 2008134
November 18, 2008132
November 25, 2008132
December 2, 2008133
December 9, 2008133
December 16, 2008138
December 23, 2008136
December 30, 2008132
January 6, 2009131
January 13, 2009129
January 20, 2009122
January 27, 2009122
February 3, 2009125
February 10, 2009125
February 17, 2009127
February 24, 2009144
March 3, 2009144
March 10, 2009117
March 17, 2009117
March 24, 2009117
March 31, 2009117
April 7, 2009112
April 14, 2009102
April 21, 200995
April 28, 200995
May 5, 200985
May 12, 200974
May 19, 200971
May 26, 200971
June 2, 200972
June 9, 200942
June 16, 200926
June 23, 20091
June 30, 20091
July 7, 20091
July 14, 20092
July 21, 20095
July 28, 20095
August 4, 20094
August 11, 20093
August 18, 20090
August 25, 20090
September 1, 20090
September 8, 20090
September 15, 20090
September 22, 20090
September 29, 200934
October 6, 200934
October 13, 200934
October 20, 200928
October 27, 200921
November 3, 200918
November 10, 200918
November 17, 200912
November 24, 200912
December 1, 200913
December 8, 200925
December 15, 200926
December 22, 200926
December 29, 200946
January 5, 201054
January 12, 201078
January 19, 201080
January 26, 201085
February 2, 201087
February 9, 2010132
February 16, 2010132
February 23, 2010137
March 2, 2010137
March 9, 2010175
March 16, 2010176
March 23, 2010184
March 30, 2010182
April 6, 2010182
April 13, 2010182
April 20, 2010182
April 27, 2010178
May 4, 2010178
May 11, 2010170
May 18, 2010170
May 25, 2010140
June 1, 2010138
June 8, 2010105
June 15, 2010105
June 22, 201077
June 29, 201061
July 6, 201025
July 13, 201025
July 20, 201025
July 27, 201010
August 3, 201010
August 10, 20109
August 17, 20104
August 24, 20104
August 31, 20104
September 7, 20104
September 14, 20104
September 21, 20104
September 28, 201028
October 5, 201028
October 12, 201039
October 19, 201039
October 26, 201019
November 2, 201019
November 9, 201019
November 16, 201019
November 23, 201019
November 30, 201019
December 7, 201019
December 14, 20100
December 21, 20100
December 28, 20100
January 4, 20110
January 11, 20110
January 18, 20110
January 25, 20110
February 1, 20110
February 8, 20110
February 15, 20110
February 22, 20110
March 1, 20110
March 8, 20110
March 15, 20110
March 22, 20110
March 29, 20110
April 5, 20110
April 12, 20110
April 19, 20110
April 26, 20110
May 3, 20110
May 10, 20110
May 17, 20110
May 24, 20110
May 31, 20110
June 7, 20110
June 14, 20110
June 21, 20110
June 28, 20110
July 5, 20110
July 12, 20110
July 19, 20110
July 26, 20110
August 2, 20110
August 9, 20110
August 16, 20110
August 23, 20110
August 30, 20110
September 6, 20110
September 13, 20110
September 20, 20110
September 27, 201113
October 4, 201113
October 11, 20113
October 18, 20111
October 25, 20110
November 1, 20110
November 8, 20112
November 15, 20112
November 22, 20112
November 29, 20110
December 6, 20110
December 13, 20110
December 20, 20110
December 27, 201151
January 3, 201229
January 10, 201243
January 17, 201281
January 24, 201258
January 31, 201254
February 7, 201254
February 14, 201254
February 21, 201254
February 28, 201256
March 6, 201256
March 13, 201256
March 20, 20126
March 27, 20125
April 3, 20125
April 10, 20125
April 17, 20125
April 24, 20125
May 1, 20125
May 8, 201213
May 15, 201213
May 22, 201213
May 29, 201210
June 5, 201210
June 12, 20129
June 19, 201220
June 26, 201248
July 3, 201249
July 10, 201261
July 17, 201276
July 24, 201275
July 31, 201275
August 7, 201275
August 14, 201292
August 21, 2012151
August 28, 2012152
September 4, 2012152
September 11, 2012152
September 18, 2012152
September 25, 2012152
October 2, 2012152
October 9, 2012151
October 16, 2012151
October 23, 2012146
October 30, 2012146
November 6, 2012135
November 13, 2012132
November 20, 2012132
November 27, 2012132
December 4, 2012112
December 11, 2012103
December 18, 2012103
December 25, 2012103
January 1, 2013103
January 8, 201392
January 15, 201392
January 22, 2013100
January 29, 201398
February 5, 201398
February 12, 201379
February 19, 201379
February 26, 201379
March 5, 201373
March 12, 201373
March 19, 201373
March 26, 201374
April 2, 201375
April 9, 201375
April 16, 201375
April 23, 201375
April 30, 201375
May 7, 2013104
May 14, 2013103
May 21, 2013104
May 28, 2013104
June 4, 2013142
June 11, 2013187
June 18, 2013199
June 25, 2013197
July 2, 2013197
July 9, 2013197
July 16, 2013227
July 23, 2013235
July 30, 2013235
August 6, 2013250
August 13, 2013254
August 20, 2013275
August 27, 2013275
September 3, 2013265
September 10, 2013265
September 17, 2013260
September 24, 2013260
October 1, 2013213
October 8, 2013196
October 15, 2013196
October 22, 2013195
October 29, 2013195
November 5, 2013195
November 12, 2013195
November 19, 2013195
November 26, 2013195
December 3, 2013195
December 10, 2013195
December 17, 2013195
December 24, 2013199
December 31, 2013202
January 7, 2014230
January 14, 2014232
January 21, 2014232
January 28, 2014232
February 4, 2014232
February 11, 2014228
February 18, 2014174
February 25, 2014168
March 4, 2014166
March 11, 2014140
March 18, 2014126
March 25, 2014126
April 1, 2014126
April 8, 2014125
April 15, 2014124
April 22, 2014124
April 29, 2014124
May 6, 2014119
May 13, 2014119
May 20, 2014119
May 27, 2014119
June 3, 2014119
June 10, 2014135
June 17, 2014135
June 24, 2014133
July 1, 2014134
July 8, 2014134
July 15, 2014134
July 22, 2014156
July 29, 2014157
August 5, 2014159
August 12, 2014161
August 19, 2014161
August 26, 2014161
September 2, 2014158
September 9, 2014158
September 16, 2014160
September 23, 2014169
September 30, 2014169
October 7, 2014169
October 14, 2014153
October 21, 2014153
October 28, 2014145
November 4, 2014146
November 11, 2014146
November 18, 2014146
November 25, 2014146
December 2, 2014146
December 9, 2014146
December 16, 2014144
December 23, 2014140
December 30, 2014140
January 6, 2015139
January 13, 2015134
January 20, 2015111
January 27, 2015117
February 3, 2015117
February 10, 2015117
February 17, 2015112
February 24, 2015120
March 3, 2015118
March 10, 2015118
March 17, 2015118
March 24, 2015126
March 31, 2015126
April 7, 2015129
April 14, 2015131
April 21, 2015132
April 28, 2015160
May 5, 2015191
May 12, 2015191
May 19, 2015202
May 26, 2015201
June 2, 2015201
June 9, 2015198
June 16, 2015211
June 23, 2015229
June 30, 2015233
July 7, 2015241
July 14, 2015245
July 21, 2015245
July 28, 2015261
August 4, 2015261
August 11, 2015263
August 18, 2015263
August 25, 2015269
September 1, 2015269
September 8, 2015269
September 15, 2015269
September 22, 2015262
September 29, 2015262
October 6, 2015251
October 13, 2015251
October 20, 2015248
October 27, 2015248
November 3, 2015236
November 10, 2015212
November 17, 2015212
November 24, 2015212
December 1, 2015209
December 8, 2015208
December 15, 2015181
December 22, 2015181
December 29, 2015179
January 5, 2016156
January 12, 2016156
January 19, 2016155
January 26, 2016151
February 2, 2016151
February 9, 2016146
February 16, 2016146
February 23, 2016145
March 1, 2016145
March 8, 201695
March 15, 201683
March 22, 201626
March 29, 201624
April 5, 20168
April 12, 20168
April 19, 20168
April 26, 20168
May 3, 20168
May 10, 20168
May 17, 20168
May 24, 20168
May 31, 20168
June 7, 201614
June 14, 201620
June 21, 201620
June 28, 201640
July 5, 201657
July 12, 201660
July 19, 201660
July 26, 201660
August 2, 201660
August 9, 201672
August 16, 201672
August 23, 201672
August 30, 201690
September 6, 201699
September 13, 2016109
September 20, 2016109
September 27, 2016103
October 4, 2016103
October 11, 201652
October 18, 201621
October 25, 201619
November 1, 201618
November 8, 201618
November 15, 201618
November 22, 201618
November 29, 201618
December 6, 201618
December 13, 201618
December 20, 201617
December 27, 201610
January 3, 201710
January 10, 20172
January 17, 20172
January 24, 20172
January 31, 20172
February 7, 20172
February 14, 20172
February 21, 20172
February 28, 20171
March 7, 20170
March 14, 20170
March 21, 20170
March 28, 20170
April 4, 20170
April 11, 20170
April 18, 20170
April 25, 20170
May 2, 20170
May 9, 20170
May 16, 20170
May 23, 20170
May 30, 20170
June 6, 20170
June 13, 20170
June 20, 20170
June 27, 20170
July 4, 20170
July 11, 20170
July 18, 201711
July 25, 201717
August 1, 201722
August 8, 201728
August 15, 201749
August 22, 201763
August 29, 201775
September 5, 2017113
September 12, 2017117
September 19, 2017116
September 26, 201782
October 3, 201781
October 10, 201781
October 17, 201777
October 24, 201739
October 31, 201739
November 7, 201721
November 14, 201721
November 21, 20172
November 28, 20170
December 5, 20170
December 12, 20170
December 19, 20170
December 26, 20170
January 2, 20180
January 9, 20181
January 16, 20186
January 23, 20186
January 30, 201841
February 6, 201841
February 13, 201841
February 20, 201841
February 27, 201845
March 6, 201845
March 13, 201845
March 20, 201845
March 27, 201841
April 3, 201841
April 10, 201841
April 17, 201841
April 24, 201841
May 1, 201836
May 8, 201837
May 15, 201830
May 22, 201830
May 29, 201830
June 5, 201830
June 12, 201830
June 19, 201835
June 26, 201835
July 3, 201836
July 10, 201839
July 17, 201848
July 24, 201849
July 31, 201882
August 7, 201885
August 14, 2018117
August 21, 2018131
August 28, 2018131
September 4, 2018133
September 11, 2018136
September 18, 2018143
September 25, 2018149
October 2, 2018149
October 9, 2018141
October 16, 2018126
October 23, 2018126
October 30, 2018112
November 6, 201897
November 13, 201897
November 20, 201897
November 27, 201897
December 4, 201897
December 11, 2018102
December 18, 2018102
December 25, 2018102
January 1, 2019101
January 8, 2019101
January 15, 2019115
January 22, 2019115
January 29, 2019126
February 5, 2019127
February 12, 2019128
February 19, 2019115
February 26, 201972
March 5, 201972
March 12, 201917
March 19, 201916
March 26, 201915
April 2, 201915
April 9, 201910
April 16, 20196
April 23, 20196
April 30, 20196
May 7, 20196
May 14, 20196
May 21, 20196
May 28, 20199
June 4, 20199
June 11, 201910
June 18, 201910
June 25, 201914
July 2, 201916
July 9, 201921
July 16, 201921
July 23, 201918
July 30, 201918
August 6, 201921
August 13, 201912
August 20, 201912
August 27, 201912
September 3, 201921
September 10, 201921
September 17, 201911
September 24, 20197
October 1, 20197
October 8, 20193
October 15, 20193
October 22, 20193
October 29, 20190
November 5, 20190
November 12, 20190
November 19, 20190
November 26, 20190
December 3, 20190
December 10, 201959
December 17, 201970
December 24, 201969
December 31, 201975
January 7, 202084
January 14, 202077
January 21, 202073
January 28, 202073
February 4, 202065
February 11, 202041
February 18, 202041
February 25, 202045
March 3, 202045
March 10, 202045
March 17, 202045
March 24, 202045
March 31, 202045
April 7, 202045
April 14, 202052
April 21, 202058
April 28, 202061
May 5, 202064
May 12, 202073
May 19, 202075
May 26, 202071
June 2, 202072
June 9, 202072
June 16, 202071
June 23, 202063
June 30, 202040
July 7, 202040
July 14, 202039
July 21, 202039
July 28, 202039
August 4, 202040
August 11, 202040
August 18, 202040
August 25, 202043
September 1, 202045
September 8, 202057
September 15, 202071
September 22, 202089
September 29, 202093
October 6, 2020105
October 13, 2020105
October 20, 2020102
October 27, 202099
November 3, 202095
November 10, 202093
November 17, 202087
November 24, 202087
December 1, 202085
December 8, 202092
December 15, 202088
December 22, 202088
December 29, 202088
January 5, 202193
January 12, 202193
January 19, 202193
January 26, 202195
February 2, 2021117
February 9, 2021117
February 16, 2021115
February 23, 2021115
March 2, 202191
March 9, 202191
March 16, 202190
March 23, 202190
March 30, 202191
April 6, 202192
April 13, 2021118
April 20, 2021129
April 27, 2021145
May 4, 2021147
May 11, 2021147
May 18, 2021165
May 25, 2021166
June 1, 2021168
June 8, 2021217
June 15, 2021217
June 22, 2021239
June 29, 2021276
July 6, 2021295
July 13, 2021326
July 20, 2021345
July 27, 2021363
August 3, 2021367
August 10, 2021367
August 17, 2021368
August 24, 2021366
August 31, 2021374
September 7, 2021374
September 14, 2021380
September 21, 2021377
September 28, 2021378
October 5, 2021377
October 12, 2021377
October 19, 2021376
October 26, 2021360
November 2, 2021332
November 9, 2021332
November 16, 2021323
November 23, 2021320
November 30, 2021320
December 7, 2021314
December 14, 2021305
December 21, 2021298
December 28, 2021263
January 4, 2022233
January 11, 2022225
January 18, 2022222
January 25, 2022222
February 1, 2022221
February 8, 2022221
February 15, 2022221
February 22, 2022216
March 1, 2022216
March 8, 2022209
March 15, 2022211
March 22, 2022216
March 29, 2022216
April 5, 2022247
April 12, 2022247
April 19, 2022249
April 26, 2022238
May 3, 2022241
May 10, 2022228
May 17, 2022228
May 24, 2022203
May 31, 2022198
June 7, 2022196
June 14, 2022140
June 21, 2022140
June 28, 2022133
July 5, 2022133
July 12, 2022133
July 19, 2022133
July 26, 2022134
August 2, 2022134
August 9, 2022133
August 16, 2022139
August 23, 2022154
August 30, 2022155
September 6, 2022155
September 13, 2022192
September 20, 2022209
September 27, 2022209
October 4, 2022205
October 11, 2022206
October 18, 2022221
October 25, 2022221
November 1, 2022221
November 8, 2022210
November 15, 2022206
November 22, 2022205
November 29, 2022205
December 6, 2022203
December 13, 2022191
December 20, 2022191
December 27, 2022191
January 3, 2023191
January 10, 2023191
January 17, 2023183
January 24, 2023178
January 31, 2023182
February 7, 2023181
February 14, 2023181
February 21, 2023189
February 28, 2023189
March 7, 2023186
March 14, 2023186
March 21, 2023174
March 28, 2023126
April 4, 2023112
April 11, 202396
April 18, 202395
April 25, 202392
May 2, 202392
May 9, 202392
May 16, 202392
May 23, 202373
May 30, 202373
June 6, 202368
June 13, 202368
June 20, 202368
June 27, 202364
July 4, 202362
July 11, 202364
July 18, 202365
July 25, 202374
August 1, 202375
August 8, 202374
August 15, 202372
August 22, 202363
August 29, 202363
September 5, 202356
September 12, 202354
September 19, 202357
September 26, 202357
October 3, 202357
October 10, 202357
October 17, 202357
October 24, 202357
October 31, 202357
November 7, 202351
November 14, 202348
November 21, 202348
November 28, 202352
December 5, 202351
December 12, 202361
December 19, 202359
December 26, 202365
January 2, 202469
January 9, 202496
January 16, 202496
January 23, 202499
January 30, 2024100
February 6, 202489
February 13, 202493
February 20, 202496
February 27, 202496
March 5, 202485
March 12, 202483
March 19, 202481
March 26, 202481
April 2, 202481
April 9, 202466
April 16, 202459
April 23, 202459
April 30, 202459
May 7, 202459
May 14, 202458
May 21, 202458
May 28, 202458
June 4, 202455
June 11, 202455
June 18, 202455
June 25, 202474
July 2, 202486
July 9, 2024104
July 16, 2024120
July 23, 2024119
July 30, 2024119
August 6, 2024136
August 13, 2024144
August 20, 2024144
August 27, 2024144
September 3, 2024149
September 10, 2024166
September 17, 2024164
September 24, 2024164
October 1, 2024164
October 8, 2024172
October 15, 2024173
October 22, 2024173
October 29, 2024170
November 5, 2024170
November 12, 2024169
November 19, 2024157
November 26, 2024141
December 3, 2024141
December 10, 2024138
December 17, 2024138
December 24, 2024138
December 31, 2024135
January 7, 2025115
January 14, 2025116
January 21, 2025114
January 28, 2025114
February 4, 2025115
February 11, 2025100
February 18, 2025100
February 25, 202579
March 4, 202556
March 11, 202554
March 18, 202552
March 25, 202551
April 1, 202551
April 8, 202551
April 15, 202551
April 22, 202551
April 29, 202565
May 6, 202565
May 13, 202583
May 20, 202583
May 27, 202583
June 3, 202585
June 10, 202590
June 17, 2025103
June 24, 2025152
July 1, 2025211
July 8, 2025226
July 15, 2025244
July 22, 2025245
July 29, 2025254
August 5, 2025254
August 12, 2025253
August 19, 2025266
August 26, 2025266
September 2, 2025254
September 9, 2025254
September 16, 2025251
September 23, 2025257
September 30, 2025257
October 7, 2025238
October 14, 2025237
October 21, 2025237
October 28, 2025232
November 4, 2025230
November 11, 2025189
November 18, 2025187
November 25, 2025187
December 2, 2025191
December 9, 2025191
December 16, 2025176
December 23, 2025174
December 30, 2025164
January 6, 2026146
January 13, 2026142
January 20, 2026151
January 27, 2026151
February 3, 2026166
February 10, 2026166
February 17, 2026166
February 24, 2026166
March 3, 2026171
March 10, 2026171
March 17, 2026172
March 24, 2026173
March 31, 2026211
April 7, 2026213
April 14, 2026235
April 21, 2026236
April 28, 2026237
May 5, 2026237
May 12, 2026259
May 19, 2026265
May 26, 2026277
June 2, 2026277
June 9, 2026277
June 16, 2026289
June 23, 2026296
June 30, 2026282
July 7, 2026275
July 14, 2026275
July 21, 2026264
July 28, 2026263
August 4, 2026281
August 11, 2026281
August 18, 2026271
August 25, 2026271
September 1, 2026274
September 8, 2026265
September 15, 2026262
September 22, 2026249
September 29, 2026248
October 6, 2026245

By county

Index

  1. Twin Falls456
  2. Owyhee431
  3. Cassia417
  4. Gooding400
  5. Jerome400
  6. Lincoln400
  7. Minidoka400
  8. Oneida400
  9. Power400
  10. Bingham395
  11. Jefferson394
  12. Bannock388
  13. Madison373
  14. Bonneville347
  15. Caribou329
  16. Butte322
  17. Kootenai319
  18. Benewah300
  19. Latah300
  20. Nez Perce300
  21. Franklin294
  22. Lewis274
  23. Bear Lake273
  24. Camas269
  25. Teton268
  26. Elmore267
  27. Fremont267
  28. Bonner261
  29. Washington259
  30. Clark242
  31. Blaine241
  32. Boundary231
  33. Adams220
  34. Shoshone218
  35. Ada183
  36. Clearwater163
  37. Payette129
  38. Canyon111
  39. Boise107
  40. Gem102
  41. Idaho County74
  42. Custer59
  43. Valley53
  44. Lemhi24

Source: National Drought Mitigation Center, University of Nebraska-Lincoln, U.S. Drought Monitor. Data period October 6, 2026. Published .

Ada County: 183 Index (October 6, 2026)Adams County: 220 Index (October 6, 2026)Bannock County: 388 Index (October 6, 2026)Bear Lake County: 273 Index (October 6, 2026)Benewah County: 300 Index (October 6, 2026)Bingham County: 395 Index (October 6, 2026)Blaine County: 241 Index (October 6, 2026)Boise County: 107 Index (October 6, 2026)Bonner County: 261 Index (October 6, 2026)Bonneville County: 347 Index (October 6, 2026)Boundary County: 231 Index (October 6, 2026)Butte County: 322 Index (October 6, 2026)Camas County: 269 Index (October 6, 2026)Canyon County: 111 Index (October 6, 2026)Caribou County: 329 Index (October 6, 2026)Cassia County: 417 Index (October 6, 2026)Clark County: 242 Index (October 6, 2026)Clearwater County: 163 Index (October 6, 2026)Custer County: 59 Index (October 6, 2026)Elmore County: 267 Index (October 6, 2026)Franklin County: 294 Index (October 6, 2026)Fremont County: 267 Index (October 6, 2026)Gem County: 102 Index (October 6, 2026)Gooding County: 400 Index (October 6, 2026)Idaho County: 74 Index (October 6, 2026)Jefferson County: 394 Index (October 6, 2026)Jerome County: 400 Index (October 6, 2026)Kootenai County: 319 Index (October 6, 2026)Latah County: 300 Index (October 6, 2026)Lemhi County: 24 Index (October 6, 2026)Lewis County: 274 Index (October 6, 2026)Lincoln County: 400 Index (October 6, 2026)Madison County: 373 Index (October 6, 2026)Minidoka County: 400 Index (October 6, 2026)Nez Perce County: 300 Index (October 6, 2026)Oneida County: 400 Index (October 6, 2026)Owyhee County: 431 Index (October 6, 2026)Payette County: 129 Index (October 6, 2026)Power County: 400 Index (October 6, 2026)Shoshone County: 218 Index (October 6, 2026)Teton County: 268 Index (October 6, 2026)Twin Falls County: 456 Index (October 6, 2026)Valley County: 53 Index (October 6, 2026)Washington County: 259 Index (October 6, 2026)
  • 24 to 174
  • 175 to 266
  • 267 to 299
  • 300 to 396
  • 397 to 456

Source: National Drought Mitigation Center, University of Nebraska-Lincoln, U.S. Drought Monitor. Data period October 6, 2026. Published .

Data table (44 rows)

Compared with other states

Index

  1. Oklahoma336
  2. Arkansas335
  3. Utah299
  4. Wyoming272
  5. Oregon265
  6. Nevada262
  7. Idaho245
  8. Washington190
  9. United States146
  10. Montana98
  11. Ohio4
  12. Iowa1
  13. Rhode Island0

Source: National Drought Mitigation Center, University of Nebraska-Lincoln, U.S. Drought Monitor. Data period October 6, 2026. Published .

An excerpt; the full table is below.

StateOctober 6, 2026
1. Oklahoma336
2. Arkansas335
3. Utah299
4. Wyoming272
5. Oregon265
6. Nevada262
7. Colorado252
8. Maine251
9. Louisiana247
10. Idaho245
Data table (52 rows)
StateOctober 6, 2026
1. Oklahoma336
2. Arkansas335
3. Utah299
4. Wyoming272
5. Oregon265
6. Nevada262
7. Colorado252
8. Maine251
9. Louisiana247
10. Idaho245
11. Texas245
12. New Mexico235
13. Mississippi220
14. Washington190
15. Tennessee186
16. South Carolina185
17. North Carolina182
18. Minnesota172
19. Wisconsin171
20. North Dakota165
21. Arizona161
22. South Dakota155
23. Alabama150
24. New Hampshire148
25. Missouri146
United States146
26. Nebraska142
27. Florida123
28. Georgia120
29. Virginia111
30. Michigan101
31. District of Columbia100
32. Montana98
33. Vermont96
34. California95
35. Maryland94
36. Kansas90
37. Kentucky75
38. Massachusetts52
39. Delaware45
40. Illinois44
41. New York32
42. New Jersey22
43. Connecticut13
44. Hawaii11
45. Indiana11
46. Alaska6
47. Pennsylvania5
48. West Virginia5
49. Ohio4
50. Iowa1
51. Rhode Island0

Share of Idaho in each drought class

Cumulative share of Idaho's area in each U.S. Drought Monitor class or worse, as published weekly: the D2 figure includes D2, D3 and D4.

Percent

  1. D0-D4 - Abnormally Dry or worse85.58%
  2. D1-D4 - Moderate Drought or worse67.60%
  3. D2-D4 - Severe Drought or worse52.75%
  4. D3-D4 - Extreme Drought or worse31.91%
  5. None14.42%
  6. D4 - Exceptional Drought6.72%

Source: National Drought Mitigation Center, University of Nebraska-Lincoln, U.S. Drought Monitor. Data period October 6, 2026. Published .

Data table (6 rows)
Share of Idaho in each drought classOctober 6, 2026 (percent)
D0-D4 - Abnormally Dry or worse85.58%
D1-D4 - Moderate Drought or worse67.60%
D2-D4 - Severe Drought or worse52.75%
D3-D4 - Extreme Drought or worse31.91%
None14.42%
D4 - Exceptional Drought6.72%

Source

Organization
National Drought Mitigation Center, University of Nebraska-Lincoln
Dataset
U.S. Drought Monitor
Geography
Nation, states, the District of Columbia, and Idaho counties
Time coverage
2000-2026
Update frequency
Weekly
Published
Original file
https://usdmdataservices.unl.edu/api/StateStatistics/GetDroughtSeverityStatisticsByAreaPercent
Methodology
https://droughtmonitor.unl.edu/About/AbouttheData/DSCI.aspx
License
Public domain. U.S. federal government work, produced by the National Drought Mitigation Center with USDA and NOAA.
Our copy
U.S. Drought Monitor

Caveats

  • The D0-D4 area-percent figures are cumulative: the D2 figure is the share of area in D2 or worse (D2, D3 or D4), not D2 alone, as the U.S. Drought Monitor's own data service documents. The 'None' figure is the remaining share in no drought class at all; None plus D0 always sums to 100 percent.
  • The Drought Severity and Coverage Index (DSCI) is the publisher's own single-number rollup, documented as the sum of the D0-D4 cumulative percentages for a week; it ranges from 0 (no abnormal dryness anywhere) to 500 (the entire area in D4, Exceptional Drought). Understand Idaho requests it directly from the publisher's service rather than computing it.
  • The area-percent figures are pulled for Idaho only. The Drought Severity and Coverage Index is pulled for the nation, every state, the District of Columbia, and every Idaho county; it is not pulled for counties outside Idaho.
  • The map date is the Tuesday each week's conditions are assessed as of; the map itself is released the following Thursday. Weeks are not revised after release.
  • The national Drought Severity and Coverage Index figure is the publisher's own 'Total' row (all 50 states), not its separate row for the 48 contiguous states.

Cite

Cite this page as Understand Idaho, “Idaho drought conditions”, https://understandidaho.com/water/drought/, retrieved on the date you read it, and the publisher named above for the figures themselves. The dataset behind it is described in the data catalog.

This page was last updated .