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

Detention River Threshold Days by Year

3 fixed thresholds counted per year at Detention River (ASN00091135): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Detention River Thresholds

  • Detention River: days with 10 mm (0.39 in) or more of precipitation in 25 years, most in 1936 with 60.
  • Detention River: days with 25 mm (0.98 in) or more of precipitation in 25 years, most in 1936 with 15.
  • Detention River: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1936 with 6.
  • 3 fixed thresholds have at least one qualifying day at Detention River.
25 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Detention River Days per year at Detention River with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 60 in 1936. 02040601920: 441921: 411922: 381923: 551924: 441925: 211926: 331927: 291933: 321936: 601940: 221966: 371967: 241968: 471969: 361970: 361971: 521972: 211973: 371974: 481975: 421976: 241977: 241978: 271979: 32192019231926193619671970197319761979
Days per year at Detention River with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 60 in 1936.
Days with 10 mm (0.39 in) or more of precipitation per year at Detention River
YearDaysDecade average
19204438.1
19214138.1
19223838.1
19235538.1
19244438.1
19252138.1
19263338.1
19272938.1
19333246
19366046
19402222
19663736
19672436
19684736
19693636
19703634.3
19715234.3
19722134.3
19733734.3
19744834.3
19754234.3
19762434.3
19772434.3
19782734.3
19793234.3
First to last qualifying date each year at Detention River For each year, a bar from the first to the last day at Detention River meeting 10 mm (0.39 in). 1920: 11 April 1920 to 16 December 19201921: 2 January 1921 to 30 December 19211922: 22 February 1922 to 30 December 19221923: 5 January 1923 to 15 December 19231924: 6 January 1924 to 26 November 19241925: 13 January 1925 to 3 December 19251926: 9 February 1926 to 17 December 19261927: 6 January 1927 to 5 December 19271933: 26 January 1933 to 30 November 19331936: 21 January 1936 to 4 December 19361940: 6 January 1940 to 9 December 19401966: 14 February 1966 to 29 December 19661967: 13 January 1967 to 31 December 19671968: 21 February 1968 to 24 December 19681969: 15 January 1969 to 3 December 19691970: 21 March 1970 to 28 December 19701971: 1 January 1971 to 31 December 19711972: 12 January 1972 to 4 December 19721973: 13 January 1973 to 31 December 19731974: 17 January 1974 to 29 December 19741975: 9 January 1975 to 3 December 19751976: 23 January 1976 to 27 December 19761977: 15 January 1977 to 29 November 19771978: 3 January 1978 to 12 December 19781979: 17 January 1979 to 15 November 19791920192419331967197119751979JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Detention River meeting 10 mm (0.39 in).
First to last qualifying date each year at Detention River
YearFirst dateLast date
19201920-04-111920-12-16
19211921-01-021921-12-30
19221922-02-221922-12-30
19231923-01-051923-12-15
19241924-01-061924-11-26
19251925-01-131925-12-03
19261926-02-091926-12-17
19271927-01-061927-12-05
19331933-01-261933-11-30
19361936-01-211936-12-04
19401940-01-061940-12-09
19661966-02-141966-12-29
19671967-01-131967-12-31
19681968-02-211968-12-24
19691969-01-151969-12-03
19701970-03-211970-12-28
19711971-01-011971-12-31
19721972-01-121972-12-04
19731973-01-131973-12-31
19741974-01-171974-12-29
19751975-01-091975-12-03
19761976-01-231976-12-27
19771977-01-151977-11-29
19781978-01-031978-12-12
19791979-01-171979-11-15

Every Fixed Threshold

Fixed thresholds at Detention River
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2560193632
25 mm (0.98 in): Days with 25 mm or more rain251519366
50 mm (1.97 in): Days with 50 mm or more rain8619361

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

  • Data for Detention River 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).