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Built 2026-10-19 (19 October 2026)

Webster Flat Threshold Days by Year (USS0012M03S)

8 fixed thresholds counted per year at Webster Flat (USS0012M03S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Webster Flat Thresholds

  • Webster Flat: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1998 with 47.
  • Webster Flat: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 2010 with 15.
  • Webster Flat: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 2004 with 44.
  • Webster Flat: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 2011 with 196.
  • 8 fixed thresholds have at least one qualifying day at Webster Flat.
23 years with a qualifying day
Nights at or below 0 C (32 F) per year at Webster Flat Days per year at Webster Flat with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 196 in 2011. 0501001502002004: 1662005: 1682006: 1772007: 1612008: 1872009: 1682010: 1852011: 1962012: 1492013: 1742014: 1702015: 1532016: 1602017: 1522018: 1752019: 1912020: 1752021: 1632022: 1802023: 1662024: 1732025: 1392026: 9120042007201020132016201920222025
Days per year at Webster Flat with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 196 in 2011.
Nights at or below 0 C (32 F) per year at Webster Flat
YearDaysDecade average
2004166171.2
2005168171.2
2006177171.2
2007161171.2
2008187171.2
2009168171.2
2010185170.5
2011196170.5
2012149170.5
2013174170.5
2014170170.5
2015153170.5
2016160170.5
2017152170.5
2018175170.5
2019191170.5
2020175155.3
2021163155.3
2022180155.3
2023166155.3
2024173155.3
2025139155.3
202691155.3
First to last qualifying date each year at Webster Flat For each year, a bar from the first to the last day at Webster Flat meeting 0 C (32 F). 2004: 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 30 December 20222023: 6 January 2023 to 31 December 20232024: 1 January 2024 to 31 December 20242025: 1 January 2025 to 31 December 20252026: 2 January 2026 to 15 October 202620042007201020132016201920222025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Webster Flat meeting 0 C (32 F).
First to last qualifying date each year at Webster Flat
YearFirst dateLast date
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
20222022-01-012022-12-30
20232023-01-062023-12-31
20242024-01-012024-12-31
20252025-01-012025-12-31
20262026-01-022026-10-15

Every Fixed Threshold

Fixed thresholds at Webster Flat
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1120211
0 C (32 F): Ice days (max234420048
0 C (32 F): Frost days (min23196201191
-10 C (14 F): Days with min234320078
-20 C (-4 F): Days with min6320071
10 mm (0.39 in): Days with 10 mm or more rain4647199825
25 mm (0.98 in): Days with 25 mm or more rain461520105
50 mm (1.97 in): Days with 50 mm or more rain18320192

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2021.

Download the Data

  • Data for Webster Flat 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 (2026-10-18).