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Mammoth-Cottonwood SNOTEL

No snow sat on the pillow at Mammoth-Cottonwood at the start of October 4, 2026. The NRCS median first snow is November 12, and the median peak is 18.7 in around April 9.

as of

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

Last 8 days

Start-of-day readings for Mammoth-Cottonwood, 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 inches24.8 inches
Sep 290.0 inches0.0 inches0 inches24.6 inches
Sep 280.0 inches0.0 inches0 inches23.6 inches
Sep 270.0 inches0.0 inches0 inches23.6 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 Mammoth-Cottonwood

Record values for Mammoth-Cottonwood, from daily snowpack history.
Highest SWE on record37.9 inches, April 5, 2023
Deepest snow on record109 inches, April 5, 2023
Biggest season peak37.9 in, 2022-23 season, on April 5, 2023
Smallest season peak8.4 in, 2025-26 season, on March 7, 2026
Last season's peak8.4 in, 2025-26 season, on March 7, 2026

47 complete water years in the record, daily SWE since October 1, 1979

Station details

Elevation8,710 ft
CountySanpete
Position39.6834, -111.3182
Record startsOctober 1, 1978
Median peak SWE18.7 in around April 9
Median first snowNovember 12
Median melt-outMay 15
NRCS station ID612:UT:SNTL

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