Built 2026-10-17 (17 October 2026)

Hallett (Ketchowla) Threshold Days by Year

4 fixed thresholds counted per year at Hallett (Ketchowla) (ASN00021028): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hallett (Ketchowla) Thresholds

  • Hallett (Ketchowla): days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1973 with 18.
  • Hallett (Ketchowla): days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1973 with 6.
  • Hallett (Ketchowla): days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 1973 with 3.
  • Hallett (Ketchowla): days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1950 with 1.
  • 4 fixed thresholds have at least one qualifying day at Hallett (Ketchowla).
71 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hallett (Ketchowla) Days per year at Hallett (Ketchowla) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1973. 051015201917: 41918: 31919: 41920: 111921: 101922: 71923: 41924: 51925: 71926: 61927: 31928: 41929: 11930: 61931: 51932: 41933: 21934: 31936: 51937: 71938: 41939: 41940: 11941: 51942: 51943: 11944: 31945: 51946: 71947: 71948: 21949: 51950: 71951: 61952: 41953: 31954: 61955: 81956: 21957: 31958: 31959: 41960: 51961: 41962: 71963: 41964: 61965: 61966: 51968: 41969: 81970: 51971: 51972: 41973: 181974: 151975: 61976: 81977: 11978: 81979: 91980: 81981: 91983: 81984: 71986: 71987: 61988: 71989: 61990: 81993: 10191719251933194219501958196619751984
Days per year at Hallett (Ketchowla) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1973.
Days with 10 mm (0.39 in) or more of precipitation per year at Hallett (Ketchowla)
YearDaysDecade average
191743.7
191833.7
191943.7
1920115.8
1921105.8
192275.8
192345.8
192455.8
192575.8
192665.8
192735.8
192845.8
192915.8
193064.4
193154.4
193244.4
193324.4
193434.4
193654.4
193774.4
193844.4
193944.4
194014.1
194154.1
194254.1
194314.1
194434.1
194554.1
194674.1
194774.1
194824.1
194954.1
195074.6
195164.6
195244.6
195334.6
195464.6
195584.6
195624.6
195734.6
195834.6
195944.6
196055.4
196145.4
196275.4
196345.4
196465.4
196565.4
196655.4
196845.4
196985.4
197057.9
197157.9
197247.9
1973187.9
1974157.9
197567.9
197687.9
197717.9
197887.9
197997.9
198087.3
198197.3
198387.3
198477.3
198677.3
198767.3
198877.3
198967.3
199089
1993109
First to last qualifying date each year at Hallett (Ketchowla) For each year, a bar from the first to the last day at Hallett (Ketchowla) meeting 10 mm (0.39 in). 1917: 14 February 1917 to 12 December 19171918: 5 April 1918 to 20 August 19181919: 18 February 1919 to 13 November 19191920: 1 June 1920 to 27 December 19201921: 2 January 1921 to 5 November 19211922: 26 April 1922 to 10 December 19221923: 18 March 1923 to 18 December 19231924: 3 January 1924 to 14 December 19241925: 13 January 1925 to 10 July 19251926: 25 March 1926 to 26 September 19261927: 5 January 1927 to 7 December 19271928: 13 February 1928 to 30 September 19281929: 27 December 1929 to 27 December 19291930: 8 February 1930 to 5 December 19301931: 1 April 1931 to 3 December 19311932: 5 February 1932 to 12 August 19321933: 31 August 1933 to 29 November 19331934: 31 May 1934 to 6 November 19341936: 4 January 1936 to 8 October 19361937: 9 January 1937 to 1 December 19371938: 15 January 1938 to 24 October 19381939: 25 February 1939 to 4 November 19391940: 1 April 1940 to 1 April 19401941: 23 January 1941 to 4 November 19411942: 20 January 1942 to 5 November 19421943: 18 February 1943 to 18 February 19431944: 6 February 1944 to 21 December 19441945: 20 June 1945 to 27 December 19451946: 17 January 1946 to 26 December 19461947: 10 February 1947 to 1 October 19471948: 11 April 1948 to 5 November 19481949: 27 February 1949 to 9 October 19491950: 2 February 1950 to 19 November 19501951: 14 March 1951 to 25 October 19511952: 25 January 1952 to 1 October 19521953: 29 September 1953 to 29 October 19531954: 26 January 1954 to 11 December 19541955: 15 February 1955 to 16 June 19551956: 6 July 1956 to 11 July 19561957: 20 June 1957 to 29 December 19571958: 7 March 1958 to 3 October 19581959: 23 January 1959 to 5 October 19591960: 1 May 1960 to 12 November 19601961: 23 July 1961 to 22 November 19611962: 12 January 1962 to 28 December 19621963: 28 April 1963 to 25 August 19631964: 8 April 1964 to 22 December 19641965: 8 May 1965 to 5 December 19651966: 23 June 1966 to 4 December 19661968: 29 April 1968 to 2 July 19681969: 23 January 1969 to 28 October 19691970: 27 August 1970 to 11 December 19701971: 17 April 1971 to 25 November 19711972: 11 January 1972 to 26 December 19721973: 28 January 1973 to 30 December 19731974: 14 January 1974 to 16 October 19741975: 13 July 1975 to 24 October 19751976: 1 February 1976 to 3 November 19761977: 29 November 1977 to 29 November 19771978: 6 June 1978 to 24 December 19781979: 17 January 1979 to 31 December 19791980: 1 January 1980 to 23 October 19801981: 27 January 1981 to 28 November 19811983: 4 April 1983 to 31 December 19831984: 15 January 1984 to 3 October 19841986: 17 January 1986 to 17 December 19861987: 21 January 1987 to 15 October 19871988: 1 January 1988 to 4 November 19881989: 11 March 1989 to 23 July 19891990: 7 January 1990 to 2 December 19901993: 24 January 1993 to 22 December 199319171926193619451954196319731983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hallett (Ketchowla) meeting 10 mm (0.39 in).
First to last qualifying date each year at Hallett (Ketchowla)
YearFirst dateLast date
19171917-02-141917-12-12
19181918-04-051918-08-20
19191919-02-181919-11-13
19201920-06-011920-12-27
19211921-01-021921-11-05
19221922-04-261922-12-10
19231923-03-181923-12-18
19241924-01-031924-12-14
19251925-01-131925-07-10
19261926-03-251926-09-26
19271927-01-051927-12-07
19281928-02-131928-09-30
19291929-12-271929-12-27
19301930-02-081930-12-05
19311931-04-011931-12-03
19321932-02-051932-08-12
19331933-08-311933-11-29
19341934-05-311934-11-06
19361936-01-041936-10-08
19371937-01-091937-12-01
19381938-01-151938-10-24
19391939-02-251939-11-04
19401940-04-011940-04-01
19411941-01-231941-11-04
19421942-01-201942-11-05
19431943-02-181943-02-18
19441944-02-061944-12-21
19451945-06-201945-12-27
19461946-01-171946-12-26
19471947-02-101947-10-01
19481948-04-111948-11-05
19491949-02-271949-10-09
19501950-02-021950-11-19
19511951-03-141951-10-25
19521952-01-251952-10-01
19531953-09-291953-10-29
19541954-01-261954-12-11
19551955-02-151955-06-16
19561956-07-061956-07-11
19571957-06-201957-12-29
19581958-03-071958-10-03
19591959-01-231959-10-05
19601960-05-011960-11-12
19611961-07-231961-11-22
19621962-01-121962-12-28
19631963-04-281963-08-25
19641964-04-081964-12-22
19651965-05-081965-12-05
19661966-06-231966-12-04
19681968-04-291968-07-02
19691969-01-231969-10-28
19701970-08-271970-12-11
19711971-04-171971-11-25
19721972-01-111972-12-26
19731973-01-281973-12-30
19741974-01-141974-10-16
19751975-07-131975-10-24
19761976-02-011976-11-03
19771977-11-291977-11-29
19781978-06-061978-12-24
19791979-01-171979-12-31
19801980-01-011980-10-23
19811981-01-271981-11-28
19831983-04-041983-12-31
19841984-01-151984-10-03
19861986-01-171986-12-17
19871987-01-211987-10-15
19881988-01-011988-11-04
19891989-03-111989-07-23
19901990-01-071990-12-02
19931993-01-241993-12-22

Every Fixed Threshold

Fixed thresholds at Hallett (Ketchowla)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain7118197310
25 mm (0.98 in): Days with 25 mm or more rain48619732
50 mm (1.97 in): Days with 50 mm or more rain12319731
100 mm (3.94 in): Days with 100 mm or more rain1119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Hallett (Ketchowla) 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).