Built 2026-10-19 (19 October 2026)

Windsor Threshold Days by Year (USC00119354)

19 fixed thresholds counted per year at Windsor (USC00119354): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Windsor Thresholds

  • Windsor: days with 10 mm (0.39 in) or more of precipitation in 121 years, most in 1927 with 47.
  • Windsor: days with 25 mm (0.98 in) or more of precipitation in 121 years, most in 1945 with 19.
  • Windsor: days with a maximum temperature at or above 30 C (86 F) in 118 years, most in 1911 with 100.
  • Windsor: days with a maximum temperature at or above 90 F (32.2 C) in 118 years, most in 1913 with 83.
  • 19 fixed thresholds have at least one qualifying day at Windsor.
118 years with a qualifying day
Days at or above 30 C (86 F) per year at Windsor Days per year at Windsor with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 1911. 02550751001904: 241905: 591906: 701907: 541908: 871909: 741910: 771911: 1001912: 551913: 971914: 901915: 381916: 801917: 531918: 671919: 791920: 641921: 981922: 851923: 651924: 461925: 821926: 751927: 401928: 531929: 551930: 701931: 731932: 621933: 861934: 791935: 611936: 931937: 731938: 621939: 661940: 711941: 831942: 621943: 711944: 881945: 431946: 521947: 661948: 611949: 671950: 291951: 451952: 791953: 971954: 931955: 861956: 711957: 631958: 411959: 781960: 611961: 691962: 691963: 691965: 471966: 671967: 351968: 541969: 451970: 601971: 681972: 691973: 571974: 421975: 611976: 591977: 711978: 571979: 471980: 721981: 441982: 501983: 861984: 671985: 401986: 581987: 651988: 821989: 461990: 491991: 801992: 291993: 421994: 601995: 701996: 541997: 531998: 741999: 702000: 512001: 702002: 872003: 532006: 532007: 702008: 282011: 602012: 752013: 322014: 302015: 322016: 492017: 482018: 562019: 442020: 382021: 462022: 412023: 442024: 492025: 602026: 531904191619281940195219651977198920012017
Days per year at Windsor with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 1911.
Days at or above 30 C (86 F) per year at Windsor
YearDaysDecade average
19042461.3
19055961.3
19067061.3
19075461.3
19088761.3
19097461.3
19107773.6
191110073.6
19125573.6
19139773.6
19149073.6
19153873.6
19168073.6
19175373.6
19186773.6
19197973.6
19206466.3
19219866.3
19228566.3
19236566.3
19244666.3
19258266.3
19267566.3
19274066.3
19285366.3
19295566.3
19307072.5
19317372.5
19326272.5
19338672.5
19347972.5
19356172.5
19369372.5
19377372.5
19386272.5
19396672.5
19407166.4
19418366.4
19426266.4
19437166.4
19448866.4
19454366.4
19465266.4
19476666.4
19486166.4
19496766.4
19502968.2
19514568.2
19527968.2
19539768.2
19549368.2
19558668.2
19567168.2
19576368.2
19584168.2
19597868.2
19606157.3
19616957.3
19626957.3
19636957.3
19654757.3
19666757.3
19673557.3
19685457.3
19694557.3
19706059.1
19716859.1
19726959.1
19735759.1
19744259.1
19756159.1
19765959.1
19777159.1
19785759.1
19794759.1
19807261
19814461
19825061
19838661
19846761
19854061
19865861
19876561
19888261
19894661
19904958.1
19918058.1
19922958.1
19934258.1
19946058.1
19957058.1
19965458.1
19975358.1
19987458.1
19997058.1
20005158.9
20017058.9
20028758.9
20035358.9
20065358.9
20077058.9
20082858.9
20116047.3
20127547.3
20133247.3
20143047.3
20153247.3
20164947.3
20174847.3
20185647.3
20194447.3
20203847.3
20214647.3
20224147.3
20234447.3
20244947.3
20256047.3
20265347.3
First to last qualifying date each year at Windsor For each year, a bar from the first to the last day at Windsor meeting 30 C (86 F). 1904: 13 June 1904 to 28 September 19041905: 10 May 1905 to 8 October 19051906: 16 May 1906 to 21 September 19061907: 21 March 1907 to 19 September 19071908: 15 May 1908 to 20 October 19081909: 5 May 1909 to 8 October 19091910: 23 March 1910 to 19 October 19101911: 9 May 1911 to 6 October 19111912: 3 May 1912 to 6 October 19121913: 14 May 1913 to 10 October 19131914: 11 May 1914 to 7 October 19141915: 25 April 1915 to 16 September 19151916: 6 May 1916 to 8 October 19161917: 19 May 1917 to 15 September 19171918: 16 April 1918 to 5 October 19181919: 29 May 1919 to 3 October 19191920: 27 May 1920 to 22 October 19201921: 19 May 1921 to 29 September 19211922: 11 May 1922 to 5 October 19221923: 29 May 1923 to 28 September 19231924: 5 May 1924 to 18 October 19241925: 22 April 1925 to 29 September 19251926: 1 May 1926 to 1 October 19261927: 21 May 1927 to 17 September 19271928: 10 May 1928 to 12 October 19281929: 4 April 1929 to 28 September 19291930: 10 April 1930 to 12 October 19301931: 27 May 1931 to 22 September 19311932: 14 May 1932 to 15 September 19321933: 20 May 1933 to 30 September 19331934: 9 May 1934 to 10 October 19341935: 12 June 1935 to 24 September 19351936: 7 May 1936 to 22 September 19361937: 17 April 1937 to 5 October 19371938: 15 June 1938 to 18 October 19381939: 17 May 1939 to 9 October 19391940: 7 May 1940 to 25 October 19401941: 20 May 1941 to 6 October 19411942: 28 May 1942 to 30 September 19421943: 5 May 1943 to 1 October 19431944: 15 May 1944 to 6 October 19441945: 24 June 1945 to 23 September 19451946: 7 June 1946 to 7 October 19461947: 7 June 1947 to 22 October 19471948: 1 June 1948 to 20 September 19481949: 3 May 1949 to 9 October 19491950: 23 May 1950 to 17 October 19501951: 1 May 1951 to 4 October 19511952: 1 May 1952 to 1 October 19521953: 24 May 1953 to 22 October 19531954: 25 April 1954 to 10 October 19541955: 3 May 1955 to 29 September 19551956: 12 May 1956 to 29 September 19561957: 5 June 1957 to 3 September 19571958: 15 May 1958 to 25 September 19581959: 2 May 1959 to 4 October 19591960: 24 April 1960 to 25 September 19601961: 1 June 1961 to 24 September 19611962: 13 May 1962 to 12 October 19621963: 8 May 1963 to 15 October 19631965: 23 April 1965 to 20 September 19651966: 27 May 1966 to 13 September 19661967: 24 May 1967 to 4 October 19671968: 2 May 1968 to 31 October 19681969: 28 May 1969 to 6 September 19691970: 21 May 1970 to 23 September 19701971: 3 June 1971 to 2 October 19711972: 19 May 1972 to 20 September 19721973: 9 June 1973 to 24 September 19731974: 20 May 1974 to 27 August 19741975: 19 May 1975 to 13 October 19751976: 7 June 1976 to 3 October 19761977: 13 April 1977 to 8 September 19771978: 25 May 1978 to 20 September 19781979: 8 May 1979 to 12 September 19791980: 5 June 1980 to 8 October 19801981: 5 June 1981 to 1 October 19811982: 13 May 1982 to 6 October 19821983: 11 June 1983 to 3 October 19831984: 19 May 1984 to 21 September 19841985: 22 April 1985 to 20 September 19851986: 25 April 1986 to 29 September 19861987: 29 April 1987 to 14 September 19871988: 14 May 1988 to 22 September 19881989: 26 April 1989 to 13 October 19891990: 8 June 1990 to 7 September 19901991: 14 May 1991 to 16 September 19911992: 12 June 1992 to 15 September 19921993: 8 May 1993 to 31 August 19931994: 23 May 1994 to 1 October 19941995: 7 June 1995 to 13 September 19951996: 17 May 1996 to 11 September 19961997: 18 May 1997 to 7 October 19971998: 14 May 1998 to 28 September 19981999: 5 June 1999 to 28 September 19992000: 24 May 2000 to 1 October 20002001: 30 April 2001 to 13 September 20012002: 18 April 2002 to 2 October 20022003: 9 May 2003 to 13 September 20032006: 24 May 2006 to 4 October 20062007: 30 April 2007 to 8 October 20072008: 2 July 2008 to 24 September 20082011: 12 May 2011 to 14 September 20112012: 6 May 2012 to 7 September 20122013: 15 May 2013 to 5 October 20132014: 28 May 2014 to 6 September 20142015: 8 June 2015 to 9 September 20152016: 11 June 2016 to 26 September 20162017: 11 May 2017 to 27 September 20172018: 14 May 2018 to 7 October 20182019: 25 May 2019 to 3 October 20192020: 3 June 2020 to 9 September 20202021: 26 May 2021 to 11 October 20212022: 11 May 2022 to 22 September 20222023: 25 May 2023 to 4 October 20232024: 20 May 2024 to 22 September 20242025: 16 May 2025 to 4 October 20252026: 23 March 2026 to 14 October 202619041919193419491965198019952014JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Windsor meeting 30 C (86 F).
First to last qualifying date each year at Windsor
YearFirst dateLast date
19041904-06-131904-09-28
19051905-05-101905-10-08
19061906-05-161906-09-21
19071907-03-211907-09-19
19081908-05-151908-10-20
19091909-05-051909-10-08
19101910-03-231910-10-19
19111911-05-091911-10-06
19121912-05-031912-10-06
19131913-05-141913-10-10
19141914-05-111914-10-07
19151915-04-251915-09-16
19161916-05-061916-10-08
19171917-05-191917-09-15
19181918-04-161918-10-05
19191919-05-291919-10-03
19201920-05-271920-10-22
19211921-05-191921-09-29
19221922-05-111922-10-05
19231923-05-291923-09-28
19241924-05-051924-10-18
19251925-04-221925-09-29
19261926-05-011926-10-01
19271927-05-211927-09-17
19281928-05-101928-10-12
19291929-04-041929-09-28
19301930-04-101930-10-12
19311931-05-271931-09-22
19321932-05-141932-09-15
19331933-05-201933-09-30
19341934-05-091934-10-10
19351935-06-121935-09-24
19361936-05-071936-09-22
19371937-04-171937-10-05
19381938-06-151938-10-18
19391939-05-171939-10-09
19401940-05-071940-10-25
19411941-05-201941-10-06
19421942-05-281942-09-30
19431943-05-051943-10-01
19441944-05-151944-10-06
19451945-06-241945-09-23
19461946-06-071946-10-07
19471947-06-071947-10-22
19481948-06-011948-09-20
19491949-05-031949-10-09
19501950-05-231950-10-17
19511951-05-011951-10-04
19521952-05-011952-10-01
19531953-05-241953-10-22
19541954-04-251954-10-10
19551955-05-031955-09-29
19561956-05-121956-09-29
19571957-06-051957-09-03
19581958-05-151958-09-25
19591959-05-021959-10-04
19601960-04-241960-09-25
19611961-06-011961-09-24
19621962-05-131962-10-12
19631963-05-081963-10-15
19651965-04-231965-09-20
19661966-05-271966-09-13
19671967-05-241967-10-04
19681968-05-021968-10-31
19691969-05-281969-09-06
19701970-05-211970-09-23
19711971-06-031971-10-02
19721972-05-191972-09-20
19731973-06-091973-09-24
19741974-05-201974-08-27
19751975-05-191975-10-13
19761976-06-071976-10-03
19771977-04-131977-09-08
19781978-05-251978-09-20
19791979-05-081979-09-12
19801980-06-051980-10-08
19811981-06-051981-10-01
19821982-05-131982-10-06
19831983-06-111983-10-03
19841984-05-191984-09-21
19851985-04-221985-09-20
19861986-04-251986-09-29
19871987-04-291987-09-14
19881988-05-141988-09-22
19891989-04-261989-10-13
19901990-06-081990-09-07
19911991-05-141991-09-16
19921992-06-121992-09-15
19931993-05-081993-08-31
19941994-05-231994-10-01
19951995-06-071995-09-13
19961996-05-171996-09-11
19971997-05-181997-10-07
19981998-05-141998-09-28
19991999-06-051999-09-28
20002000-05-242000-10-01
20012001-04-302001-09-13
20022002-04-182002-10-02
20032003-05-092003-09-13
20062006-05-242006-10-04
20072007-04-302007-10-08
20082008-07-022008-09-24
20112011-05-122011-09-14
20122012-05-062012-09-07
20132013-05-152013-10-05
20142014-05-282014-09-06
20152015-06-082015-09-09
20162016-06-112016-09-26
20172017-05-112017-09-27
20182018-05-142018-10-07
20192019-05-252019-10-03
20202020-06-032020-09-09
20212021-05-262021-10-11
20222022-05-112022-09-22
20232023-05-252023-10-04
20242024-05-202024-09-22
20252025-05-162025-10-04
20262026-03-232026-10-14

Every Fixed Threshold

Fixed thresholds at Windsor
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days118100191153
35 C (95 F): Days975619137
40 C (104 F): Days121019366
90 F (32.2 C): Days11883191330
100 F (37.8 C): Days312819139
110 F (43.3 C): Days1119361
0 C (32 F): Ice days (max11857197826
0 C (32 F): Frost days (min118141201364
-10 C (14 F): Days with min11851196320
-20 C (-4 F): Days with min871519634
-30 C (-22 F): Days with min6219121
20 C (68 F): Tropical nights (min11856199144
25 C (77 F): Days with min29819361
10 mm (0.39 in): Days with 10 mm or more rain12147192729
25 mm (0.98 in): Days with 25 mm or more rain1211919457
50 mm (1.97 in): Days with 50 mm or more rain98620192
100 mm (3.94 in): Days with 100 mm or more rain19119081
10 cm (3.9 in): Days with 10 cm or more snowfall86419341
25 cm (9.8 in): Days with 25 cm or more snowfall11119061

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

  • Data for Windsor 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).