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Built 2026-10-19 (19 October 2026)

Willimantic Windham AP Threshold Days by Year (USW00054767)

14 fixed thresholds counted per year at Willimantic Windham AP (USW00054767): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Willimantic Windham AP Thresholds

  • Willimantic Windham AP: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2010 with 46.
  • Willimantic Windham AP: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 2018 with 21.
  • Willimantic Windham AP: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 2003 with 43.
  • Willimantic Windham AP: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 2002 with 152.
  • 14 fixed thresholds have at least one qualifying day at Willimantic Windham AP.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Willimantic Windham AP Days per year at Willimantic Windham AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 2010. 02040601997: 201998: 191999: 362000: 172001: 332002: 312003: 202004: 82005: 352006: 232007: 292008: 182009: 202010: 462011: 282012: 342013: 242014: 232015: 402016: 452017: 432018: 432019: 342020: 402021: 302022: 342023: 252024: 212025: 291997200020032006200920122015201820212024
Days per year at Willimantic Windham AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 2010.
Days at or above 30 C (86 F) per year at Willimantic Windham AP
YearDaysDecade average
19972025
19981925
19993625
20001723.4
20013323.4
20023123.4
20032023.4
2004823.4
20053523.4
20062323.4
20072923.4
20081823.4
20092023.4
20104636
20112836
20123436
20132436
20142336
20154036
20164536
20174336
20184336
20193436
20204029.8
20213029.8
20223429.8
20232529.8
20242129.8
20252929.8
First to last qualifying date each year at Willimantic Windham AP For each year, a bar from the first to the last day at Willimantic Windham AP meeting 30 C (86 F). 1997: 10 June 1997 to 17 August 19971998: 31 March 1998 to 6 September 19981999: 29 May 1999 to 3 September 19992000: 7 May 2000 to 31 August 20002001: 22 April 2001 to 10 August 20012002: 17 April 2002 to 9 September 20022003: 24 June 2003 to 22 August 20032004: 12 May 2004 to 29 August 20042005: 5 June 2005 to 14 September 20052006: 30 May 2006 to 5 August 20062007: 24 May 2007 to 26 September 20072008: 7 June 2008 to 4 September 20082009: 25 April 2009 to 26 August 20092010: 7 April 2010 to 25 September 20102011: 27 May 2011 to 26 August 20112012: 16 April 2012 to 1 September 20122013: 21 May 2013 to 11 September 20132014: 12 May 2014 to 6 September 20142015: 8 May 2015 to 17 September 20152016: 25 May 2016 to 14 September 20162017: 11 April 2017 to 27 September 20172018: 2 May 2018 to 6 September 20182019: 26 May 2019 to 22 August 20192020: 4 June 2020 to 25 August 20202021: 19 May 2021 to 27 August 20212022: 21 May 2022 to 30 August 20222023: 13 April 2023 to 8 September 20232024: 3 June 2024 to 28 August 20242025: 5 June 2025 to 17 August 202519972001200520092013201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Willimantic Windham AP meeting 30 C (86 F).
First to last qualifying date each year at Willimantic Windham AP
YearFirst dateLast date
19971997-06-101997-08-17
19981998-03-311998-09-06
19991999-05-291999-09-03
20002000-05-072000-08-31
20012001-04-222001-08-10
20022002-04-172002-09-09
20032003-06-242003-08-22
20042004-05-122004-08-29
20052005-06-052005-09-14
20062006-05-302006-08-05
20072007-05-242007-09-26
20082008-06-072008-09-04
20092009-04-252009-08-26
20102010-04-072010-09-25
20112011-05-272011-08-26
20122012-04-162012-09-01
20132013-05-212013-09-11
20142014-05-122014-09-06
20152015-05-082015-09-17
20162016-05-252016-09-14
20172017-04-112017-09-27
20182018-05-022018-09-06
20192019-05-262019-08-22
20202020-06-042020-08-25
20212021-05-192021-08-27
20222022-05-212022-08-30
20232023-04-132023-09-08
20242024-06-032024-08-28
20252025-06-052025-08-17

Every Fixed Threshold

Fixed thresholds at Willimantic Windham AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2946201029
35 C (95 F): Days19419993
90 F (32.2 C): Days2921201815
100 F (37.8 C): Days2120011
0 C (32 F): Ice days (max2943200336
0 C (32 F): Frost days (min291522002142
-10 C (14 F): Days with min2947200325
-20 C (-4 F): Days with min151020151
20 C (68 F): Tropical nights (min2933201318
25 C (77 F): Days with min2120221
10 mm (0.39 in): Days with 10 mm or more rain2750201129
25 mm (0.98 in): Days with 25 mm or more rain272120238
50 mm (1.97 in): Days with 50 mm or more rain22520102
100 mm (3.94 in): Days with 100 mm or more rain4120011

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Willimantic Windham AP 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 (2025-12-31).