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WeatherTotals

South Mtn. SNOTEL

No snow sat on the pillow at South Mtn. at the start of October 4, 2026. The NRCS median first snow is November 17, and the median peak is 15.6 in around March 22.

as of

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

Last 8 days

Start-of-day readings for South Mtn., 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 inches25.9 inches
Sep 290.0 inches0.0 inches0 inches25.9 inches
Sep 280.0 inches0.0 inches0 inches25.9 inches
Sep 270.0 inches0.0 inches0 inches25.9 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 South Mtn.

Record values for South Mtn., from daily snowpack history.
Highest SWE on record38.8 inches, April 13, 1984
Deepest snow on record78 inches, April 2, 2023
Biggest season peak38.8 in, 1983-84 season, on April 13, 1984
Smallest season peak1.8 in, 2025-26 season, on February 25, 2026
Last season's peak1.8 in, 2025-26 season, on February 25, 2026

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

Station details

Elevation6,650 ft
CountyOwyhee
Position42.7648, -116.9003
Record startsOctober 1, 1978
Median peak SWE15.6 in around March 22
Median first snowNovember 17
Median melt-outMay 3
NRCS station ID774:ID:SNTL

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