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Built 2026-10-17 (17 October 2026)

Fort St John A Threshold Days by Year

13 fixed thresholds counted per year at Fort St John A (CA001183000): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fort St John A Thresholds

  • Fort St John A: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1950 with 141.
  • Fort St John A: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1955 with 211.
  • Fort St John A: nights with a minimum temperature at or below -10 C (14 F) in 41 years, most in 1950 with 135.
  • Fort St John A: nights with a minimum temperature at or below -20 C (-4 F) in 41 years, most in 1950 with 85.
  • 13 fixed thresholds have at least one qualifying day at Fort St John A.
22 years with a qualifying day
Days at or above 30 C (86 F) per year at Fort St John A Days per year at Fort St John A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1950. 024681944: 21945: 51948: 21949: 21950: 71958: 11959: 31960: 21961: 31962: 11963: 11965: 21966: 11967: 11968: 11969: 21970: 21971: 31975: 11981: 61982: 21983: 119441949195919621966196919751983
Days per year at Fort St John A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1950.
Days at or above 30 C (86 F) per year at Fort St John A
YearDaysDecade average
194422.8
194552.8
194822.8
194922.8
195073.7
195813.7
195933.7
196021.6
196131.6
196211.6
196311.6
196521.6
196611.6
196711.6
196811.6
196921.6
197022
197132
197512
198163
198223
198313
First to last qualifying date each year at Fort St John A For each year, a bar from the first to the last day at Fort St John A meeting 30 C (86 F). 1944: 19 July 1944 to 9 September 19441945: 28 May 1945 to 14 August 19451948: 19 June 1948 to 1 August 19481949: 13 July 1949 to 1 August 19491950: 12 June 1950 to 24 July 19501958: 17 July 1958 to 17 July 19581959: 10 July 1959 to 23 July 19591960: 30 July 1960 to 9 August 19601961: 13 July 1961 to 14 August 19611962: 31 July 1962 to 31 July 19621963: 8 August 1963 to 8 August 19631965: 30 July 1965 to 31 July 19651966: 24 August 1966 to 24 August 19661967: 31 August 1967 to 31 August 19671968: 4 July 1968 to 4 July 19681969: 16 June 1969 to 17 June 19691970: 3 June 1970 to 2 August 19701971: 19 July 1971 to 1 August 19711975: 11 July 1975 to 11 July 19751981: 17 July 1981 to 25 August 19811982: 19 June 1982 to 29 July 19821983: 29 May 1983 to 29 May 198319441949195919621966196919751983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fort St John A meeting 30 C (86 F).
First to last qualifying date each year at Fort St John A
YearFirst dateLast date
19441944-07-191944-09-09
19451945-05-281945-08-14
19481948-06-191948-08-01
19491949-07-131949-08-01
19501950-06-121950-07-24
19581958-07-171958-07-17
19591959-07-101959-07-23
19601960-07-301960-08-09
19611961-07-131961-08-14
19621962-07-311962-07-31
19631963-08-081963-08-08
19651965-07-301965-07-31
19661966-08-241966-08-24
19671967-08-311967-08-31
19681968-07-041968-07-04
19691969-06-161969-06-17
19701970-06-031970-08-02
19711971-07-191971-08-01
19751975-07-111975-07-11
19811981-07-171981-08-25
19821982-06-191982-07-29
19831983-05-291983-05-29

Every Fixed Threshold

Fixed thresholds at Fort St John A
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days22719501
90 F (32.2 C): Days3119441
0 C (32 F): Ice days (max411411950131
0 C (32 F): Frost days (min412111955189
-10 C (14 F): Days with min411351950117
-20 C (-4 F): Days with min4185195042
-30 C (-22 F): Days with min4035195110
-40 C (-40 F): Days with min16919501
10 mm (0.39 in): Days with 10 mm or more rain4125195712
25 mm (0.98 in): Days with 25 mm or more rain30619544
50 mm (1.97 in): Days with 50 mm or more rain6219721
10 cm (3.9 in): Days with 10 cm or more snowfall381019573
25 cm (9.8 in): Days with 25 cm or more snowfall4119541

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.

Download the Data

  • Data for Fort St John 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-16).