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East Boulder Mine SNOTEL

No snow sat on the pillow at East Boulder Mine at the start of October 4, 2026. The NRCS median first snow is November 9, and the median peak is 6.4 in around April 2.

as of

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

Last 8 days

Start-of-day readings for East Boulder Mine, 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 inches27.0 inches
Sep 290.0 inches0.0 inches0 inches26.9 inches
Sep 280.0 inches0.0 inches0 inches26.9 inches
Sep 270.0 inches0.0 inches0 inches26.9 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 East Boulder Mine

Record values for East Boulder Mine, from daily snowpack history.
Highest SWE on record10.5 inches, April 3, 2014
Deepest snow on record53 inches, March 27, 2023
Biggest season peak10.5 in, 2013-14 season, on April 3, 2014
Smallest season peak3.2 in, 2014-15 season, on January 5, 2015
Last season's peak4.7 in, 2025-26 season, on March 16, 2026

18 complete water years in the record, daily SWE since June 19, 2008

Station details

Elevation6,310 ft
CountySweet Grass
Position45.5038, -110.0802
Record startsJune 19, 2008
Median peak SWE6.4 in around April 2
Median first snowNovember 9
Median melt-outApril 28
NRCS station ID1105:MT:SNTL

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