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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Hart Lake Threshold Days by Year (USC00083840)

4 fixed thresholds counted per year at Hart Lake (USC00083840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hart Lake Thresholds

  • Hart Lake: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1959 with 56.
  • Hart Lake: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1953 with 27.
  • Hart Lake: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1960 with 9.
  • Hart Lake: days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1949 with 2.
  • 4 fixed thresholds have at least one qualifying day at Hart Lake.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hart Lake Days per year at Hart Lake with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 56 in 1959. 02040601947: 431949: 391950: 361951: 371952: 371953: 531954: 411955: 311956: 281957: 461958: 411959: 561960: 481961: 261962: 331963: 261964: 371965: 401966: 441967: 371969: 471970: 411971: 331972: 331973: 371975: 341976: 391977: 481978: 411947195119541957196019631966197019731977
Days per year at Hart Lake with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 56 in 1959.
Days with 10 mm (0.39 in) or more of precipitation per year at Hart Lake
YearDaysDecade average
19474341
19493941
19503640.6
19513740.6
19523740.6
19535340.6
19544140.6
19553140.6
19562840.6
19574640.6
19584140.6
19595640.6
19604837.6
19612637.6
19623337.6
19632637.6
19643737.6
19654037.6
19664437.6
19673737.6
19694737.6
19704138.3
19713338.3
19723338.3
19733738.3
19753438.3
19763938.3
19774838.3
19784138.3
First to last qualifying date each year at Hart Lake For each year, a bar from the first to the last day at Hart Lake meeting 10 mm (0.39 in). 1947: 31 January 1947 to 21 December 19471949: 23 March 1949 to 26 December 19491950: 8 March 1950 to 31 December 19501951: 3 February 1951 to 18 December 19511952: 29 January 1952 to 31 December 19521953: 24 January 1953 to 24 December 19531954: 25 February 1954 to 18 December 19541955: 24 January 1955 to 28 December 19551956: 23 January 1956 to 17 October 19561957: 22 January 1957 to 27 December 19571958: 7 January 1958 to 27 December 19581959: 2 January 1959 to 25 December 19591960: 30 January 1960 to 16 December 19601961: 12 January 1961 to 6 November 19611962: 2 January 1962 to 9 November 19621963: 21 January 1963 to 24 December 19631964: 7 January 1964 to 6 December 19641965: 15 January 1965 to 20 December 19651966: 21 January 1966 to 12 December 19661967: 9 February 1967 to 12 December 19671969: 1 January 1969 to 26 December 19691970: 2 January 1970 to 31 December 19701971: 1 January 1971 to 4 December 19711972: 31 January 1972 to 15 December 19721973: 12 January 1973 to 28 December 19731975: 13 January 1975 to 28 October 19751976: 22 February 1976 to 31 December 19761977: 4 January 1977 to 22 December 19771978: 9 January 1978 to 29 December 197819471952195619601964196919731978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hart Lake meeting 10 mm (0.39 in).
First to last qualifying date each year at Hart Lake
YearFirst dateLast date
19471947-01-311947-12-21
19491949-03-231949-12-26
19501950-03-081950-12-31
19511951-02-031951-12-18
19521952-01-291952-12-31
19531953-01-241953-12-24
19541954-02-251954-12-18
19551955-01-241955-12-28
19561956-01-231956-10-17
19571957-01-221957-12-27
19581958-01-071958-12-27
19591959-01-021959-12-25
19601960-01-301960-12-16
19611961-01-121961-11-06
19621962-01-021962-11-09
19631963-01-211963-12-24
19641964-01-071964-12-06
19651965-01-151965-12-20
19661966-01-211966-12-12
19671967-02-091967-12-12
19691969-01-011969-12-26
19701970-01-021970-12-31
19711971-01-011971-12-04
19721972-01-311972-12-15
19731973-01-121973-12-28
19751975-01-131975-10-28
19761976-02-221976-12-31
19771977-01-041977-12-22
19781978-01-091978-12-29

Every Fixed Threshold

Fixed thresholds at Hart Lake
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2956195941
25 mm (0.98 in): Days with 25 mm or more rain2927195314
50 mm (1.97 in): Days with 50 mm or more rain28919605
100 mm (3.94 in): Days with 100 mm or more rain8219491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

  • Data for Hart Lake 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).