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Built 2026-10-17 (17 October 2026)

Lake St Clair (Hec) Threshold Days by Year

9 fixed thresholds counted per year at Lake St Clair (Hec) (ASN00096015): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lake St Clair (Hec) Thresholds

  • Lake St Clair (Hec): days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1946 with 70.
  • Lake St Clair (Hec): days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1946 with 18.
  • Lake St Clair (Hec): nights with a minimum temperature at or below 0 C (32 F) in 27 years, most in 1963 with 93.
  • Lake St Clair (Hec): days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1947 with 3.
  • 9 fixed thresholds have at least one qualifying day at Lake St Clair (Hec).
13 years with a qualifying day
Days at or above 30 C (86 F) per year at Lake St Clair (Hec) Days per year at Lake St Clair (Hec) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1961. 02461959: 11961: 51962: 11966: 11971: 11973: 21975: 11976: 21977: 11980: 21981: 31982: 41983: 11959196219711975197719811983
Days per year at Lake St Clair (Hec) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1961.
Days at or above 30 C (86 F) per year at Lake St Clair (Hec)
YearDaysDecade average
195911
196152.3
196212.3
196612.3
197111.4
197321.4
197511.4
197621.4
197711.4
198022.5
198132.5
198242.5
198312.5
First to last qualifying date each year at Lake St Clair (Hec) For each year, a bar from the first to the last day at Lake St Clair (Hec) meeting 30 C (86 F). 1959: 17 January 1959 to 17 January 19591961: 24 January 1961 to 28 January 19611962: 16 January 1962 to 16 January 19621966: 7 March 1966 to 7 March 19661971: 17 February 1971 to 17 February 19711973: 19 January 1973 to 20 January 19731975: 7 February 1975 to 7 February 19751976: 4 January 1976 to 22 December 19761977: 12 February 1977 to 12 February 19771980: 10 December 1980 to 22 December 19801981: 14 January 1981 to 3 February 19811982: 11 January 1982 to 15 February 19821983: 8 February 1983 to 8 February 19831959196219711975197719811983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lake St Clair (Hec) meeting 30 C (86 F).
First to last qualifying date each year at Lake St Clair (Hec)
YearFirst dateLast date
19591959-01-171959-01-17
19611961-01-241961-01-28
19621962-01-161962-01-16
19661966-03-071966-03-07
19711971-02-171971-02-17
19731973-01-191973-01-20
19751975-02-071975-02-07
19761976-01-041976-12-22
19771977-02-121977-02-12
19801980-12-101980-12-22
19811981-01-141981-02-03
19821982-01-111982-02-15
19831983-02-081983-02-08

Every Fixed Threshold

Fixed thresholds at Lake St Clair (Hec)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days13519611
35 C (95 F): Days1119821
90 F (32.2 C): Days3319823
0 C (32 F): Frost days (min2793196351
-10 C (14 F): Days with min1219832
20 C (68 F): Tropical nights (min1119821
10 mm (0.39 in): Days with 10 mm or more rain4870194658
25 mm (0.98 in): Days with 25 mm or more rain481819468
50 mm (1.97 in): Days with 50 mm or more rain19319471

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

  • Data for Lake St Clair (Hec) 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 (2026-10-16).