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Built 2026-10-19 (19 October 2026)

Montreal/Mirabel Int'l A Threshold Days by Year (CA007035290)

14 fixed thresholds counted per year at Montreal/Mirabel Int'l A (CA007035290): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Montreal/Mirabel Int'l A Thresholds

  • Montreal/Mirabel Int'l A: days with a maximum temperature at or above 30 C (86 F) in 8 years, most in 1983 with 22.
  • Montreal/Mirabel Int'l A: days with a maximum temperature at or below 0 C (32 F) in 8 years, most in 1978 with 105.
  • Montreal/Mirabel Int'l A: nights with a minimum temperature at or below 0 C (32 F) in 8 years, most in 1978 with 183.
  • Montreal/Mirabel Int'l A: nights with a minimum temperature at or below -10 C (14 F) in 8 years, most in 1978 with 103.
  • 14 fixed thresholds have at least one qualifying day at Montreal/Mirabel Int'l A.
8 years with a qualifying day
Days at or above 30 C (86 F) per year at Montreal/Mirabel Int'l A Days per year at Montreal/Mirabel Int'l A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1983. 01020301976: 51977: 101978: 101979: 61980: 31981: 31982: 61983: 2219761977197819791980198119821983
Days per year at Montreal/Mirabel Int'l A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1983.
Days at or above 30 C (86 F) per year at Montreal/Mirabel Int'l A
YearDaysDecade average
197657.8
1977107.8
1978107.8
197967.8
198038.5
198138.5
198268.5
1983228.5
First to last qualifying date each year at Montreal/Mirabel Int'l A For each year, a bar from the first to the last day at Montreal/Mirabel Int'l A meeting 30 C (86 F). 1976: 7 June 1976 to 21 August 19761977: 17 May 1977 to 29 August 19771978: 27 May 1978 to 16 August 19781979: 9 May 1979 to 25 July 19791980: 24 June 1980 to 14 July 19801981: 16 June 1981 to 9 July 19811982: 7 July 1982 to 22 July 19821983: 12 June 1983 to 20 September 198319761977197819791980198119821983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Montreal/Mirabel Int'l A meeting 30 C (86 F).
First to last qualifying date each year at Montreal/Mirabel Int'l A
YearFirst dateLast date
19761976-06-071976-08-21
19771977-05-171977-08-29
19781978-05-271978-08-16
19791979-05-091979-07-25
19801980-06-241980-07-14
19811981-06-161981-07-09
19821982-07-071982-07-22
19831983-06-121983-09-20

Every Fixed Threshold

Fixed thresholds at Montreal/Mirabel Int'l A
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days822198322
90 F (32.2 C): Days3219832
0 C (32 F): Ice days (max8105197870
0 C (32 F): Frost days (min81831978169
-10 C (14 F): Days with min8103197872
-20 C (-4 F): Days with min845197624
-30 C (-22 F): Days with min7519762
20 C (68 F): Tropical nights (min3219771
10 mm (0.39 in): Days with 10 mm or more rain848198144
25 mm (0.98 in): Days with 25 mm or more rain814198314
50 mm (1.97 in): Days with 50 mm or more rain4219791
100 mm (3.94 in): Days with 100 mm or more rain1119791
10 cm (3.9 in): Days with 10 cm or more snowfall8919789
25 cm (9.8 in): Days with 25 cm or more snowfall4219832

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Montreal/Mirabel Int'l A 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).