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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Mammoth-Cottonwood Threshold Days by Year (USS0011K03S)

8 fixed thresholds counted per year at Mammoth-Cottonwood (USS0011K03S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mammoth-Cottonwood Thresholds

  • Mammoth-Cottonwood: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1980 with 48.
  • Mammoth-Cottonwood: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1980 with 14.
  • Mammoth-Cottonwood: days with a maximum temperature at or below 0 C (32 F) in 21 years, most in 2008 with 89.
  • Mammoth-Cottonwood: nights with a minimum temperature at or below 0 C (32 F) in 21 years, most in 2019 with 250.
  • 8 fixed thresholds have at least one qualifying day at Mammoth-Cottonwood.
21 years with a qualifying day
Nights at or below 0 C (32 F) per year at Mammoth-Cottonwood Days per year at Mammoth-Cottonwood with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 250 in 2019. 01002003002006: 2292007: 2232008: 2372009: 2232010: 2352011: 2232012: 2172013: 2342014: 2112015: 2062016: 2222017: 2232018: 2182019: 2502020: 2152021: 2162022: 2252023: 2082024: 2142025: 1952026: 1282006200920122015201820212024
Days per year at Mammoth-Cottonwood with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 250 in 2019.
Nights at or below 0 C (32 F) per year at Mammoth-Cottonwood
YearDaysDecade average
2006229228
2007223228
2008237228
2009223228
2010235223.9
2011223223.9
2012217223.9
2013234223.9
2014211223.9
2015206223.9
2016222223.9
2017223223.9
2018218223.9
2019250223.9
2020215200.1
2021216200.1
2022225200.1
2023208200.1
2024214200.1
2025195200.1
2026128200.1
First to last qualifying date each year at Mammoth-Cottonwood For each year, a bar from the first to the last day at Mammoth-Cottonwood meeting 0 C (32 F). 2006: 1 January 2006 to 31 December 20062007: 1 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 31 December 20102011: 1 January 2011 to 31 December 20112012: 1 January 2012 to 31 December 20122013: 1 January 2013 to 31 December 20132014: 1 January 2014 to 31 December 20142015: 1 January 2015 to 31 December 20152016: 1 January 2016 to 31 December 20162017: 1 January 2017 to 31 December 20172018: 1 January 2018 to 31 December 20182019: 1 January 2019 to 31 December 20192020: 1 January 2020 to 31 December 20202021: 1 January 2021 to 31 December 20212022: 1 January 2022 to 31 December 20222023: 1 January 2023 to 31 December 20232024: 1 January 2024 to 31 December 20242025: 1 January 2025 to 31 December 20252026: 1 January 2026 to 14 October 20262006200920122015201820212024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mammoth-Cottonwood meeting 0 C (32 F).
First to last qualifying date each year at Mammoth-Cottonwood
YearFirst dateLast date
20062006-01-012006-12-31
20072007-01-012007-12-31
20082008-01-012008-12-31
20092009-01-012009-12-31
20102010-01-012010-12-31
20112011-01-012011-12-31
20122012-01-012012-12-31
20132013-01-012013-12-31
20142014-01-012014-12-31
20152015-01-012015-12-31
20162016-01-012016-12-31
20172017-01-012017-12-31
20182018-01-012018-12-31
20192019-01-012019-12-31
20202020-01-012020-12-31
20212021-01-012021-12-31
20222022-01-012022-12-31
20232023-01-012023-12-31
20242024-01-012024-12-31
20252025-01-012025-12-31
20262026-01-012026-10-14

Every Fixed Threshold

Fixed thresholds at Mammoth-Cottonwood
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max2189200822
0 C (32 F): Frost days (min212502019128
-10 C (14 F): Days with min21110200827
-20 C (-4 F): Days with min211620132
-30 C (-22 F): Days with min1220112
10 mm (0.39 in): Days with 10 mm or more rain4748198023
25 mm (0.98 in): Days with 25 mm or more rain391419802
50 mm (1.97 in): Days with 50 mm or more rain2219821

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2006.

Download the Data

  • Data for Mammoth-Cottonwood threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).