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Built 2026-10-19 (19 October 2026)

Foam Lake Threshold Days by Year (CA004012560)

17 fixed thresholds counted per year at Foam Lake (CA004012560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Foam Lake Thresholds

  • Foam Lake: nights with a minimum temperature at or below 0 C (32 F) in 27 years, most in 1945 with 219.
  • Foam Lake: nights with a minimum temperature at or below -10 C (14 F) in 27 years, most in 1951 with 141.
  • Foam Lake: nights with a minimum temperature at or below -20 C (-4 F) in 27 years, most in 1950 with 89.
  • Foam Lake: nights with a minimum temperature at or below -30 C (-22 F) in 27 years, most in 1972 with 37.
  • 17 fixed thresholds have at least one qualifying day at Foam Lake.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Foam Lake Days per year at Foam Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 1941. 01020301939: 131940: 181941: 251942: 41943: 121944: 111945: 121946: 121947: 131948: 81950: 101951: 71952: 91960: 161962: 61963: 91964: 111965: 71966: 101967: 191968: 61969: 91970: 141971: 111972: 121973: 7193919421945194819521963196619691972
Days per year at Foam Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 1941.
Days at or above 30 C (86 F) per year at Foam Lake
YearDaysDecade average
19391313
19401812.8
19412512.8
1942412.8
19431212.8
19441112.8
19451212.8
19461212.8
19471312.8
1948812.8
1950108.7
195178.7
195298.7
19601610.3
1962610.3
1963910.3
19641110.3
1965710.3
19661010.3
19671910.3
1968610.3
1969910.3
19701411
19711111
19721211
1973711
First to last qualifying date each year at Foam Lake For each year, a bar from the first to the last day at Foam Lake meeting 30 C (86 F). 1939: 30 April 1939 to 26 August 19391940: 11 May 1940 to 4 September 19401941: 24 May 1941 to 18 September 19411942: 22 April 1942 to 20 August 19421943: 3 July 1943 to 5 October 19431944: 27 May 1944 to 9 August 19441945: 21 June 1945 to 18 August 19451946: 21 June 1946 to 15 September 19461947: 7 July 1947 to 4 August 19471948: 1 June 1948 to 3 September 19481950: 12 June 1950 to 25 September 19501951: 23 May 1951 to 28 July 19511952: 28 April 1952 to 26 September 19521960: 12 May 1960 to 19 August 19601962: 25 June 1962 to 21 August 19621963: 5 July 1963 to 20 August 19631964: 17 May 1964 to 17 September 19641965: 10 June 1965 to 23 August 19651966: 28 June 1966 to 11 September 19661967: 26 June 1967 to 6 September 19671968: 5 July 1968 to 12 September 19681969: 11 July 1969 to 13 September 19691970: 22 June 1970 to 24 August 19701971: 3 June 1971 to 11 September 19711972: 31 May 1972 to 30 August 19721973: 23 June 1973 to 27 August 19731939194319471952196419681972JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Foam Lake meeting 30 C (86 F).
First to last qualifying date each year at Foam Lake
YearFirst dateLast date
19391939-04-301939-08-26
19401940-05-111940-09-04
19411941-05-241941-09-18
19421942-04-221942-08-20
19431943-07-031943-10-05
19441944-05-271944-08-09
19451945-06-211945-08-18
19461946-06-211946-09-15
19471947-07-071947-08-04
19481948-06-011948-09-03
19501950-06-121950-09-25
19511951-05-231951-07-28
19521952-04-281952-09-26
19601960-05-121960-08-19
19621962-06-251962-08-21
19631963-07-051963-08-20
19641964-05-171964-09-17
19651965-06-101965-08-23
19661966-06-281966-09-11
19671967-06-261967-09-06
19681968-07-051968-09-12
19691969-07-111969-09-13
19701970-06-221970-08-24
19711971-06-031971-09-11
19721972-05-311972-08-30
19731973-06-231973-08-27

Every Fixed Threshold

Fixed thresholds at Foam Lake
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days262519417
35 C (95 F): Days13419401
40 C (104 F): Days1119411
90 F (32.2 C): Days261219672
100 F (37.8 C): Days2219411
0 C (32 F): Ice days (max26149197293
0 C (32 F): Frost days (min272191945184
-10 C (14 F): Days with min27141195185
-20 C (-4 F): Days with min2789195039
-30 C (-22 F): Days with min273719729
-40 C (-40 F): Days with min8619663
20 C (68 F): Tropical nights (min7219412
10 mm (0.39 in): Days with 10 mm or more rain2318195115
25 mm (0.98 in): Days with 25 mm or more rain16419714
50 mm (1.97 in): Days with 50 mm or more rain3119421
10 cm (3.9 in): Days with 10 cm or more snowfall21619513
25 cm (9.8 in): Days with 25 cm or more snowfall3119431

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Foam 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).