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Built 2026-10-19 (19 October 2026)

Whitewater Threshold Days by Year (USC00299720)

4 fixed thresholds counted per year at Whitewater (USC00299720): 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 49 years, most in 1991 with 23.
  • Whitewater: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1958 with 4.
  • Whitewater: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1985 with 1.
  • Whitewater: days with 10 cm (3.9 in) or more of snowfall in 5 years, most in 1987 with 2.
  • 4 fixed thresholds have at least one qualifying day at Whitewater.
49 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 23 in 1991. 01020301950: 51952: 61953: 61954: 61955: 71956: 11957: 151958: 151959: 101960: 91961: 71962: 91963: 41964: 91965: 101966: 81967: 111968: 111969: 71970: 71971: 91973: 81974: 81975: 141976: 31977: 91981: 101982: 81983: 191984: 151985: 151986: 211987: 91988: 171989: 61990: 121991: 231992: 111993: 111994: 101995: 121996: 171997: 161998: 101999: 142000: 132001: 122002: 142003: 51950195619611966197119771985199019952000
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 23 in 1991.
Days with 10 mm (0.39 in) or more of precipitation per year at Whitewater
YearDaysDecade average
195057.9
195267.9
195367.9
195467.9
195577.9
195617.9
1957157.9
1958157.9
1959107.9
196098.5
196178.5
196298.5
196348.5
196498.5
1965108.5
196688.5
1967118.5
1968118.5
196978.5
197078.3
197198.3
197388.3
197488.3
1975148.3
197638.3
197798.3
19811013.3
1982813.3
19831913.3
19841513.3
19851513.3
19862113.3
1987913.3
19881713.3
1989613.3
19901213.6
19912313.6
19921113.6
19931113.6
19941013.6
19951213.6
19961713.6
19971613.6
19981013.6
19991413.6
20001311
20011211
20021411
2003511
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). 1950: 7 July 1950 to 4 October 19501952: 2 March 1952 to 18 December 19521953: 10 February 1953 to 12 August 19531954: 2 July 1954 to 24 September 19541955: 15 January 1955 to 11 August 19551956: 27 July 1956 to 27 July 19561957: 3 January 1957 to 22 October 19571958: 21 February 1958 to 5 October 19581959: 30 June 1959 to 26 December 19591960: 1 January 1960 to 3 December 19601961: 16 June 1961 to 16 December 19611962: 23 January 1962 to 18 December 19621963: 12 January 1963 to 19 October 19631964: 18 March 1964 to 25 September 19641965: 7 January 1965 to 23 December 19651966: 19 January 1966 to 14 September 19661967: 9 July 1967 to 4 December 19671968: 13 February 1968 to 27 December 19681969: 15 January 1969 to 22 October 19691970: 21 February 1970 to 3 October 19701971: 3 July 1971 to 30 December 19711973: 22 February 1973 to 21 August 19731974: 9 January 1974 to 22 October 19741975: 29 January 1975 to 23 December 19751976: 3 August 1976 to 28 October 19761977: 21 January 1977 to 6 November 19771981: 1 May 1981 to 29 November 19811982: 25 February 1982 to 9 December 19821983: 3 February 1983 to 21 November 19831984: 19 July 1984 to 27 December 19841985: 26 January 1985 to 25 November 19851986: 8 February 1986 to 20 December 19861987: 31 January 1987 to 25 December 19871988: 19 January 1988 to 9 December 19881989: 1 August 1989 to 29 December 19891990: 14 July 1990 to 16 December 19901991: 12 February 1991 to 22 December 19911992: 11 January 1992 to 29 December 19921993: 8 January 1993 to 31 August 19931994: 24 April 1994 to 5 December 19941995: 4 January 1995 to 15 September 19951996: 1 February 1996 to 23 November 19961997: 3 January 1997 to 20 December 19971998: 9 February 1998 to 29 November 19981999: 18 June 1999 to 17 September 19992000: 3 June 2000 to 6 November 20002001: 12 January 2001 to 4 October 20012002: 30 January 2002 to 8 December 20022003: 27 June 2003 to 15 November 20031950195819651973198319901997JanFebMarAprMayJunJulAugSepOctNovDec
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
19501950-07-071950-10-04
19521952-03-021952-12-18
19531953-02-101953-08-12
19541954-07-021954-09-24
19551955-01-151955-08-11
19561956-07-271956-07-27
19571957-01-031957-10-22
19581958-02-211958-10-05
19591959-06-301959-12-26
19601960-01-011960-12-03
19611961-06-161961-12-16
19621962-01-231962-12-18
19631963-01-121963-10-19
19641964-03-181964-09-25
19651965-01-071965-12-23
19661966-01-191966-09-14
19671967-07-091967-12-04
19681968-02-131968-12-27
19691969-01-151969-10-22
19701970-02-211970-10-03
19711971-07-031971-12-30
19731973-02-221973-08-21
19741974-01-091974-10-22
19751975-01-291975-12-23
19761976-08-031976-10-28
19771977-01-211977-11-06
19811981-05-011981-11-29
19821982-02-251982-12-09
19831983-02-031983-11-21
19841984-07-191984-12-27
19851985-01-261985-11-25
19861986-02-081986-12-20
19871987-01-311987-12-25
19881988-01-191988-12-09
19891989-08-011989-12-29
19901990-07-141990-12-16
19911991-02-121991-12-22
19921992-01-111992-12-29
19931993-01-081993-08-31
19941994-04-241994-12-05
19951995-01-041995-09-15
19961996-02-011996-11-23
19971997-01-031997-12-20
19981998-02-091998-11-29
19991999-06-181999-09-17
20002000-06-032000-11-06
20012001-01-122001-10-04
20022002-01-302002-12-08
20032003-06-272003-11-15

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 rain492319915
25 mm (0.98 in): Days with 25 mm or more rain34419583
50 mm (1.97 in): Days with 50 mm or more rain5119851
10 cm (3.9 in): Days with 10 cm or more snowfall5219872

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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