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

Dease Lake Threshold Days by Year (CA001192340)

14 fixed thresholds counted per year at Dease Lake (CA001192340): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dease Lake Thresholds

  • Dease Lake: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 1950 with 140.
  • Dease Lake: nights with a minimum temperature at or below 0 C (32 F) in 38 years, most in 1955 with 267.
  • Dease Lake: nights with a minimum temperature at or below -10 C (14 F) in 38 years, most in 1950 with 154.
  • Dease Lake: nights with a minimum temperature at or below -20 C (-4 F) in 38 years, most in 1950 with 86.
  • 14 fixed thresholds have at least one qualifying day at Dease Lake.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at Dease Lake Days per year at Dease Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1948. 02461947: 11948: 61950: 41951: 21952: 11958: 21960: 31969: 51971: 21977: 21978: 11983: 1194719501952196019711978
Days per year at Dease Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1948.
Days at or above 30 C (86 F) per year at Dease Lake
YearDaysDecade average
194713.5
194863.5
195042.3
195122.3
195212.3
195822.3
196034
196954
197121.7
197721.7
197811.7
198311
First to last qualifying date each year at Dease Lake For each year, a bar from the first to the last day at Dease Lake meeting 30 C (86 F). 1947: 28 May 1947 to 28 May 19471948: 28 May 1948 to 18 June 19481950: 16 June 1950 to 19 June 19501951: 9 July 1951 to 10 July 19511952: 11 August 1952 to 11 August 19521958: 7 June 1958 to 20 June 19581960: 8 August 1960 to 10 August 19601969: 10 June 1969 to 15 June 19691971: 31 July 1971 to 1 August 19711977: 19 August 1977 to 20 August 19771978: 3 August 1978 to 3 August 19781983: 30 May 1983 to 30 May 1983194719501952196019711978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Dease Lake meeting 30 C (86 F).
First to last qualifying date each year at Dease Lake
YearFirst dateLast date
19471947-05-281947-05-28
19481948-05-281948-06-18
19501950-06-161950-06-19
19511951-07-091951-07-10
19521952-08-111952-08-11
19581958-06-071958-06-20
19601960-08-081960-08-10
19691969-06-101969-06-15
19711971-07-311971-08-01
19771977-08-191977-08-20
19781978-08-031978-08-03
19831983-05-301983-05-30

Every Fixed Threshold

Fixed thresholds at Dease Lake
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days12619481
35 C (95 F): Days1119831
90 F (32.2 C): Days5219501
0 C (32 F): Ice days (max381401950130
0 C (32 F): Frost days (min382671955243
-10 C (14 F): Days with min381541950134
-20 C (-4 F): Days with min3886195059
-30 C (-22 F): Days with min3838195117
-40 C (-40 F): Days with min301219727
10 mm (0.39 in): Days with 10 mm or more rain381519526
25 mm (0.98 in): Days with 25 mm or more rain10419621
50 mm (1.97 in): Days with 50 mm or more rain1119621
10 cm (3.9 in): Days with 10 cm or more snowfall341019822
25 cm (9.8 in): Days with 25 cm or more snowfall6219612

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

  • Data for Dease Lake 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).