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Understand Idaho

USDA Natural Resources Conservation Service

Snowpack, snow water equivalent, and water supply forecasts from the SNOTEL network.

https://www.nrcs.usda.gov/ ยท Federal

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SNOTEL: 1 April Snow Water Equivalent, Percent of Median

Idaho statewide snow water equivalent on 1 April each year, as a percent of the 1991-2020 median, computed from every active NRCS SNOTEL station in Idaho.

Organization
USDA Natural Resources Conservation Service
Dataset
SNOTEL: 1 April Snow Water Equivalent, Percent of Median
Geography
Idaho, statewide
Time coverage
1981-2026
Update frequency
Annual
Published
not stated
Original file
https://wcc.sc.egov.usda.gov/awdbRestApi/services/v1/data
Methodology
https://wcc.sc.egov.usda.gov/reports/UpdateReport.html?report=Idaho
License
Public domain. U.S. federal government work.
Our copy
SNOTEL: 1 April Snow Water Equivalent, Percent of Median, built by scripts/fetch-nrcs-snowpack.py

Caveats

  • This is a statewide figure: the sum of each station's 1 April reading divided by the sum of each station's median, times 100.
  • Each station needs at least 10 years of record before NRCS gives it a median; years before 1981 are excluded for this reason.
  • The number of contributing stations changes year to year as Idaho's SNOTEL network has grown.
  • Values are rounded to the nearest whole percent.

Measures

  • Snow water equivalent, percent of median (percent): 1 April snow water equivalent as a percent of the 1991-2020 median, aggregated statewide across active SNOTEL stations.

This page was last updated .