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Built 2026-10-19 (19 October 2026)

Vallecito Threshold Days by Year (USS0007M31S)

8 fixed thresholds counted per year at Vallecito (USS0007M31S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Vallecito Thresholds

  • Vallecito: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1990 with 48.
  • Vallecito: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 2008 with 80.
  • Vallecito: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 2008 with 10.
  • Vallecito: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 1995 with 238.
  • 8 fixed thresholds have at least one qualifying day at Vallecito.
36 years with a qualifying day
Nights at or below 0 C (32 F) per year at Vallecito Days per year at Vallecito with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 238 in 1995. 01002003001988: 1971990: 2021991: 1931992: 1991994: 2111995: 2381996: 2161997: 2171998: 2311999: 2082000: 2152001: 2062002: 2242004: 1762005: 2152006: 2132007: 1982008: 2142009: 2032010: 2112011: 2152012: 1882013: 2222014: 1982015: 2082016: 1982017: 1962018: 1962019: 2182020: 1872021: 1942022: 2032023: 1912024: 2062025: 1882026: 121198819941998200220072011201520192023
Days per year at Vallecito with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 238 in 1995.
Nights at or below 0 C (32 F) per year at Vallecito
YearDaysDecade average
1988197197
1990202212.8
1991193212.8
1992199212.8
1994211212.8
1995238212.8
1996216212.8
1997217212.8
1998231212.8
1999208212.8
2000215207.1
2001206207.1
2002224207.1
2004176207.1
2005215207.1
2006213207.1
2007198207.1
2008214207.1
2009203207.1
2010211205
2011215205
2012188205
2013222205
2014198205
2015208205
2016198205
2017196205
2018196205
2019218205
2020187184.3
2021194184.3
2022203184.3
2023191184.3
2024206184.3
2025188184.3
2026121184.3
First to last qualifying date each year at Vallecito For each year, a bar from the first to the last day at Vallecito meeting 0 C (32 F). 1988: 1 January 1988 to 30 December 19881990: 1 January 1990 to 31 December 19901991: 2 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921994: 3 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 31 December 19981999: 1 January 1999 to 31 December 19992000: 1 January 2000 to 31 December 20002001: 1 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 20022004: 1 January 2004 to 31 December 20042005: 1 January 2005 to 31 December 20052006: 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 30 December 20252026: 1 January 2026 to 14 October 202619881995200020062011201620212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Vallecito meeting 0 C (32 F).
First to last qualifying date each year at Vallecito
YearFirst dateLast date
19881988-01-011988-12-30
19901990-01-011990-12-31
19911991-01-021991-12-31
19921992-01-011992-12-31
19941994-01-031994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19971997-01-011997-12-31
19981998-01-011998-12-31
19991999-01-011999-12-31
20002000-01-012000-12-31
20012001-01-012001-12-31
20022002-01-012002-12-31
20042004-01-012004-12-31
20052005-01-012005-12-31
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
20252025-01-012025-12-30
20262026-01-012026-10-14

Every Fixed Threshold

Fixed thresholds at Vallecito
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max3980200828
0 C (32 F): Frost days (min362381995121
-10 C (14 F): Days with min3694199717
-20 C (-4 F): Days with min261020071
10 mm (0.39 in): Days with 10 mm or more rain4048199026
25 mm (0.98 in): Days with 25 mm or more rain381020089
50 mm (1.97 in): Days with 50 mm or more rain8320251
100 mm (3.94 in): Days with 100 mm or more rain1119891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1987.

Download the Data

  • Data for Vallecito 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).