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

Mackenzie A Threshold Days by Year (CA001184790)

12 fixed thresholds counted per year at Mackenzie A (CA001184790): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mackenzie A Thresholds

  • Mackenzie A: days with a maximum temperature at or below 0 C (32 F) in 12 years, most in 1982 with 116.
  • Mackenzie A: nights with a minimum temperature at or below 0 C (32 F) in 12 years, most in 1972 with 225.
  • Mackenzie A: nights with a minimum temperature at or below -10 C (14 F) in 12 years, most in 1982 with 115.
  • Mackenzie A: nights with a minimum temperature at or below -20 C (-4 F) in 12 years, most in 1972 with 60.
  • 12 fixed thresholds have at least one qualifying day at Mackenzie A.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at Mackenzie A Days per year at Mackenzie A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1981. 024681972: 11973: 11974: 21975: 41977: 21978: 51979: 41981: 71982: 41983: 31972197319741975197719781979198119821983
Days per year at Mackenzie A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1981.
Days at or above 30 C (86 F) per year at Mackenzie A
YearDaysDecade average
197212.7
197312.7
197422.7
197542.7
197722.7
197852.7
197942.7
198174.7
198244.7
198334.7
First to last qualifying date each year at Mackenzie A For each year, a bar from the first to the last day at Mackenzie A meeting 30 C (86 F). 1972: 29 May 1972 to 29 May 19721973: 19 July 1973 to 19 July 19731974: 2 August 1974 to 3 August 19741975: 5 July 1975 to 11 July 19751977: 18 June 1977 to 20 August 19771978: 3 June 1978 to 4 August 19781979: 17 July 1979 to 20 July 19791981: 17 July 1981 to 11 August 19811982: 18 June 1982 to 29 July 19821983: 28 May 1983 to 30 May 198319721974197719791982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mackenzie A meeting 30 C (86 F).
First to last qualifying date each year at Mackenzie A
YearFirst dateLast date
19721972-05-291972-05-29
19731973-07-191973-07-19
19741974-08-021974-08-03
19751975-07-051975-07-11
19771977-06-181977-08-20
19781978-06-031978-08-04
19791979-07-171979-07-20
19811981-07-171981-08-11
19821982-06-181982-07-29
19831983-05-281983-05-30

Every Fixed Threshold

Fixed thresholds at Mackenzie A
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days10719813
90 F (32.2 C): Days3419812
0 C (32 F): Ice days (max12116198299
0 C (32 F): Frost days (min122251972212
-10 C (14 F): Days with min12115198270
-20 C (-4 F): Days with min1260197221
-30 C (-22 F): Days with min122319726
-40 C (-40 F): Days with min6519742
10 mm (0.39 in): Days with 10 mm or more rain1223197216
25 mm (0.98 in): Days with 25 mm or more rain7319791
10 cm (3.9 in): Days with 10 cm or more snowfall121619723
25 cm (9.8 in): Days with 25 cm or more snowfall3219792

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.

Download the Data

  • Data for Mackenzie 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).