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Island Park SNOTEL

No snow sat on the pillow at Island Park at the start of October 4, 2026. The NRCS median first snow is November 4, and the median peak is 14.8 in around March 27.

as of

All values are from the start of the day, midnight Pacific Standard Time

Last 8 days

Start-of-day readings for Island Park, last 8 days.
DateSWEMedianPercentDepthPrecip since Oct 1
Oct 40.0 inches0.0 inches0 inches0.0 inches
Oct 30.0 inches0.0 inches0 inches0.0 inches
Oct 20.0 inches0.0 inches0 inches0.0 inches
Oct 10.0 inches0.0 inches0 inches0.0 inches
Sep 300.0 inches0.0 inches0 inches26.2 inches
Sep 290.0 inches0.0 inches0 inches26.2 inches
Sep 280.0 inches0.0 inches0 inches26.0 inches
Sep 270.0 inches0.0 inches0 inches26.0 inches

The Natural Resources Conservation Service (USDA) created the figures on this page, which are works of the US government and therefore have no copyright under 17 U.S.C. 105. The notice that 17 U.S.C. 403 requires appears in this sentence. Neither NRCS nor USDA endorses or is affiliated with WeatherTotals. See: Data sources and attribution.

Records at Island Park

Record values for Island Park, from daily snowpack history.
Highest SWE on record24.8 inches, March 18, 1997
Deepest snow on record73 inches, April 2, 2023
Biggest season peak24.8 in, 1996-97 season, on March 18, 1997
Smallest season peak8.2 in, 2000-01 season, on March 20, 2001
Last season's peak8.6 in, 2025-26 season, on March 11, 2026

45 complete water years in the record, daily SWE since October 1, 1981

Station details

Elevation6,300 ft
CountyFremont
Position44.4203, -111.3851
Record startsOctober 1, 1979
Median peak SWE14.8 in around March 27
Median first snowNovember 4
Median melt-outMay 9
NRCS station ID546:ID:SNTL

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