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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Coteau du Lac Threshold Days by Year (CA007011947)

14 fixed thresholds counted per year at Coteau du Lac (CA007011947): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Coteau du Lac Thresholds

  • Coteau du Lac: nights with a minimum temperature at or below 0 C (32 F) in 15 years, most in 1972 with 176.
  • Coteau du Lac: nights with a minimum temperature at or below -10 C (14 F) in 15 years, most in 1972 with 93.
  • Coteau du Lac: nights with a minimum temperature at or below -20 C (-4 F) in 15 years, most in 1982 with 36.
  • Coteau du Lac: nights with a minimum temperature at or above 20 C (68 F) in 15 years, most in 1969 with 10.
  • 14 fixed thresholds have at least one qualifying day at Coteau du Lac.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at Coteau du Lac Days per year at Coteau du Lac with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 1983. 051015201968: 71969: 91970: 131971: 111972: 51974: 41978: 91979: 91980: 31981: 31982: 71983: 18196819701972197819801982
Days per year at Coteau du Lac with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 1983.
Days at or above 30 C (86 F) per year at Coteau du Lac
YearDaysDecade average
196878
196998
1970138.5
1971118.5
197258.5
197448.5
197898.5
197998.5
198037.8
198137.8
198277.8
1983187.8
First to last qualifying date each year at Coteau du Lac For each year, a bar from the first to the last day at Coteau du Lac meeting 30 C (86 F). 1968: 1 July 1968 to 22 July 19681969: 12 June 1969 to 31 August 19691970: 2 June 1970 to 20 August 19701971: 19 May 1971 to 4 September 19711972: 15 June 1972 to 21 July 19721974: 10 June 1974 to 15 July 19741978: 27 May 1978 to 16 August 19781979: 9 May 1979 to 30 July 19791980: 24 June 1980 to 24 August 19801981: 16 June 1981 to 9 July 19811982: 7 July 1982 to 22 July 19821983: 12 June 1983 to 20 September 1983196819701972197819801982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Coteau du Lac meeting 30 C (86 F).
First to last qualifying date each year at Coteau du Lac
YearFirst dateLast date
19681968-07-011968-07-22
19691969-06-121969-08-31
19701970-06-021970-08-20
19711971-05-191971-09-04
19721972-06-151972-07-21
19741974-06-101974-07-15
19781978-05-271978-08-16
19791979-05-091979-07-30
19801980-06-241980-08-24
19811981-06-161981-07-09
19821982-07-071982-07-22
19831983-06-121983-09-20

Every Fixed Threshold

Fixed thresholds at Coteau du Lac
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1218198318
90 F (32.2 C): Days4319701
0 C (32 F): Ice days (max12100197873
0 C (32 F): Frost days (min151761972170
-10 C (14 F): Days with min1593197267
-20 C (-4 F): Days with min1536198214
-30 C (-22 F): Days with min13519701
20 C (68 F): Tropical nights (min151019696
25 C (77 F): Days with min1119691
10 mm (0.39 in): Days with 10 mm or more rain1442197435
25 mm (0.98 in): Days with 25 mm or more rain141419745
50 mm (1.97 in): Days with 50 mm or more rain5119721
10 cm (3.9 in): Days with 10 cm or more snowfall151219716
25 cm (9.8 in): Days with 25 cm or more snowfall5219711

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Coteau du Lac 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 (2026-10-17).