Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Windsor Threshold Days by Year

4 fixed thresholds counted per year at Windsor (ASN00034011): 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 45 years, most in 1950 with 30.
  • Windsor: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1956 with 15.
  • Windsor: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 1916 with 7.
  • Windsor: days with 100 mm (3.94 in) or more of precipitation in 7 years, most in 1946 with 2.
  • 4 fixed thresholds have at least one qualifying day at Windsor.
45 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Windsor Days per year at Windsor with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1950. 01020301915: 21916: 221917: 271918: 221919: 111920: 231921: 191922: 151923: 101924: 191929: 171930: 191931: 81932: 121933: 241934: 191935: 81936: 271937: 201938: 211939: 171940: 241941: 271942: 231943: 161944: 171945: 191946: 161947: 211948: 91949: 171950: 301951: 141953: 191954: 301955: 271956: 281957: 151958: 221959: 181960: 201962: 221963: 151964: 221965: 7191519201929193419391944194919551960
Days per year at Windsor with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Windsor
YearDaysDecade average
1915216.8
19162216.8
19172716.8
19182216.8
19191116.8
19202317.2
19211917.2
19221517.2
19231017.2
19241917.2
19291717.2
19301917.5
1931817.5
19321217.5
19332417.5
19341917.5
1935817.5
19362717.5
19372017.5
19382117.5
19391717.5
19402418.9
19412718.9
19422318.9
19431618.9
19441718.9
19451918.9
19461618.9
19472118.9
1948918.9
19491718.9
19503022.6
19511422.6
19531922.6
19543022.6
19552722.6
19562822.6
19571522.6
19582222.6
19591822.6
19602017.2
19622217.2
19631517.2
19642217.2
1965717.2
First to last qualifying date each year at Windsor For each year, a bar from the first to the last day at Windsor meeting 10 mm (0.39 in). 1915: 22 December 1915 to 29 December 19151916: 1 February 1916 to 31 December 19161917: 1 January 1917 to 15 December 19171918: 4 January 1918 to 27 November 19181919: 4 January 1919 to 31 December 19191920: 5 January 1920 to 8 December 19201921: 14 January 1921 to 30 December 19211922: 7 January 1922 to 27 December 19221923: 3 January 1923 to 28 December 19231924: 2 February 1924 to 17 December 19241929: 4 January 1929 to 30 December 19291930: 4 January 1930 to 26 November 19301931: 28 January 1931 to 25 December 19311932: 16 January 1932 to 23 December 19321933: 23 January 1933 to 11 November 19331934: 7 January 1934 to 14 December 19341935: 21 January 1935 to 26 December 19351936: 7 January 1936 to 29 December 19361937: 3 January 1937 to 29 December 19371938: 6 January 1938 to 17 November 19381939: 17 January 1939 to 28 December 19391940: 8 January 1940 to 22 December 19401941: 4 January 1941 to 8 December 19411942: 1 January 1942 to 29 December 19421943: 3 January 1943 to 19 December 19431944: 9 February 1944 to 20 December 19441945: 13 January 1945 to 19 December 19451946: 9 January 1946 to 10 November 19461947: 12 January 1947 to 14 December 19471948: 14 January 1948 to 30 December 19481949: 4 January 1949 to 21 December 19491950: 5 January 1950 to 20 December 19501951: 1 January 1951 to 20 December 19511953: 2 January 1953 to 2 December 19531954: 3 January 1954 to 19 December 19541955: 6 January 1955 to 20 December 19551956: 12 January 1956 to 26 December 19561957: 8 January 1957 to 14 December 19571958: 2 January 1958 to 21 December 19581959: 11 January 1959 to 28 December 19591960: 17 January 1960 to 28 December 19601962: 4 January 1962 to 30 December 19621963: 10 January 1963 to 18 December 19631964: 3 January 1964 to 28 December 19641965: 10 March 1965 to 15 December 196519151921193119371943194919561963JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Windsor meeting 10 mm (0.39 in).
First to last qualifying date each year at Windsor
YearFirst dateLast date
19151915-12-221915-12-29
19161916-02-011916-12-31
19171917-01-011917-12-15
19181918-01-041918-11-27
19191919-01-041919-12-31
19201920-01-051920-12-08
19211921-01-141921-12-30
19221922-01-071922-12-27
19231923-01-031923-12-28
19241924-02-021924-12-17
19291929-01-041929-12-30
19301930-01-041930-11-26
19311931-01-281931-12-25
19321932-01-161932-12-23
19331933-01-231933-11-11
19341934-01-071934-12-14
19351935-01-211935-12-26
19361936-01-071936-12-29
19371937-01-031937-12-29
19381938-01-061938-11-17
19391939-01-171939-12-28
19401940-01-081940-12-22
19411941-01-041941-12-08
19421942-01-011942-12-29
19431943-01-031943-12-19
19441944-02-091944-12-20
19451945-01-131945-12-19
19461946-01-091946-11-10
19471947-01-121947-12-14
19481948-01-141948-12-30
19491949-01-041949-12-21
19501950-01-051950-12-20
19511951-01-011951-12-20
19531953-01-021953-12-02
19541954-01-031954-12-19
19551955-01-061955-12-20
19561956-01-121956-12-26
19571957-01-081957-12-14
19581958-01-021958-12-21
19591959-01-111959-12-28
19601960-01-171960-12-28
19621962-01-041962-12-30
19631963-01-101963-12-18
19641964-01-031964-12-28
19651965-03-101965-12-15

Every Fixed Threshold

Fixed thresholds at Windsor
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain453019507
25 mm (0.98 in): Days with 25 mm or more rain451519562
50 mm (1.97 in): Days with 50 mm or more rain40719162
100 mm (3.94 in): Days with 100 mm or more rain7219461

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

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 (2025-12-31).