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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Whitewater Threshold Days by Year

4 fixed thresholds counted per year at Whitewater (ASN00044073): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Whitewater Thresholds

  • Whitewater: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1950 with 34.
  • Whitewater: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1950 with 13.
  • Whitewater: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1956 with 5.
  • Whitewater: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1925 with 1.
  • 4 fixed thresholds have at least one qualifying day at Whitewater.
33 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Whitewater Days per year at Whitewater with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1950. 0102030401924: 141925: 81926: 111927: 111928: 121929: 51930: 151931: 121932: 121933: 161934: 141935: 91936: 201937: 91938: 101939: 131940: 71941: 171942: 81943: 101944: 81945: 91946: 51947: 181948: 131949: 211950: 341951: 101952: 111953: 121955: 151956: 221957: 11192419281932193619401944194819521957
Days per year at Whitewater with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Whitewater
YearDaysDecade average
19241410.2
1925810.2
19261110.2
19271110.2
19281210.2
1929510.2
19301513
19311213
19321213
19331613
19341413
1935913
19362013
1937913
19381013
19391313
1940711.6
19411711.6
1942811.6
19431011.6
1944811.6
1945911.6
1946511.6
19471811.6
19481311.6
19492111.6
19503416.4
19511016.4
19521116.4
19531216.4
19551516.4
19562216.4
19571116.4
First to last qualifying date each year at Whitewater For each year, a bar from the first to the last day at Whitewater meeting 10 mm (0.39 in). 1924: 6 January 1924 to 7 December 19241925: 20 January 1925 to 31 December 19251926: 1 January 1926 to 15 December 19261927: 5 January 1927 to 23 December 19271928: 18 January 1928 to 27 December 19281929: 6 February 1929 to 10 November 19291930: 23 February 1930 to 17 December 19301931: 3 March 1931 to 10 December 19311932: 4 January 1932 to 13 November 19321933: 27 January 1933 to 25 December 19331934: 30 January 1934 to 28 December 19341935: 8 June 1935 to 4 December 19351936: 6 January 1936 to 24 December 19361937: 12 January 1937 to 1 September 19371938: 10 January 1938 to 1 November 19381939: 20 January 1939 to 4 November 19391940: 2 February 1940 to 31 December 19401941: 2 January 1941 to 29 December 19411942: 14 February 1942 to 10 December 19421943: 22 January 1943 to 18 October 19431944: 7 February 1944 to 24 November 19441945: 6 January 1945 to 8 December 19451946: 18 January 1946 to 28 December 19461947: 11 February 1947 to 20 December 19471948: 2 January 1948 to 31 December 19481949: 26 January 1949 to 14 December 19491950: 16 January 1950 to 31 December 19501951: 22 February 1951 to 25 December 19511952: 23 February 1952 to 6 October 19521953: 7 January 1953 to 30 October 19531955: 25 January 1955 to 25 November 19551956: 20 January 1956 to 14 December 19561957: 6 January 1957 to 31 December 19571924192919341939194419491955JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Whitewater meeting 10 mm (0.39 in).
First to last qualifying date each year at Whitewater
YearFirst dateLast date
19241924-01-061924-12-07
19251925-01-201925-12-31
19261926-01-011926-12-15
19271927-01-051927-12-23
19281928-01-181928-12-27
19291929-02-061929-11-10
19301930-02-231930-12-17
19311931-03-031931-12-10
19321932-01-041932-11-13
19331933-01-271933-12-25
19341934-01-301934-12-28
19351935-06-081935-12-04
19361936-01-061936-12-24
19371937-01-121937-09-01
19381938-01-101938-11-01
19391939-01-201939-11-04
19401940-02-021940-12-31
19411941-01-021941-12-29
19421942-02-141942-12-10
19431943-01-221943-10-18
19441944-02-071944-11-24
19451945-01-061945-12-08
19461946-01-181946-12-28
19471947-02-111947-12-20
19481948-01-021948-12-31
19491949-01-261949-12-14
19501950-01-161950-12-31
19511951-02-221951-12-25
19521952-02-231952-10-06
19531953-01-071953-10-30
19551955-01-251955-11-25
19561956-01-201956-12-14
19571957-01-061957-12-31

Every Fixed Threshold

Fixed thresholds at Whitewater
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3334195011
25 mm (0.98 in): Days with 25 mm or more rain331319506
50 mm (1.97 in): Days with 50 mm or more rain19519565
100 mm (3.94 in): Days with 100 mm or more rain3119251

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1924.

Download the Data

  • Data for Whitewater 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).