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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Gem Lake Threshold Days by Year

13 fixed thresholds counted per year at Gem Lake (USC00043369): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Gem Lake Thresholds

  • Gem Lake: days with 10 mm (0.39 in) or more of precipitation in 61 years, most in 1927 with 34.
  • Gem Lake: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1940 with 19.
  • Gem Lake: nights with a minimum temperature at or below 0 C (32 F) in 21 years, most in 1925 with 303.
  • Gem Lake: nights with a minimum temperature at or below -10 C (14 F) in 21 years, most in 1944 with 86.
  • 13 fixed thresholds have at least one qualifying day at Gem Lake.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Gem Lake Days per year at Gem Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1946. 02461925: 51927: 11929: 11931: 51937: 21941: 11946: 61925192719291931193719411946
Days per year at Gem Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1946.
Days at or above 30 C (86 F) per year at Gem Lake
YearDaysDecade average
192552.3
192712.3
192912.3
193153.5
193723.5
194113.5
194663.5
First to last qualifying date each year at Gem Lake For each year, a bar from the first to the last day at Gem Lake meeting 30 C (86 F). 1925: 24 June 1925 to 16 July 19251927: 9 July 1927 to 9 July 19271929: 26 July 1929 to 26 July 19291931: 18 July 1931 to 22 July 19311937: 3 July 1937 to 11 August 19371941: 21 July 1941 to 21 July 19411946: 18 July 1946 to 18 August 19461925192719291931193719411946JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Gem Lake meeting 30 C (86 F).
First to last qualifying date each year at Gem Lake
YearFirst dateLast date
19251925-06-241925-07-16
19271927-07-091927-07-09
19291929-07-261929-07-26
19311931-07-181931-07-22
19371937-07-031937-08-11
19411941-07-211941-07-21
19461946-07-181946-08-18

Every Fixed Threshold

Fixed thresholds at Gem Lake
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days7619466
90 F (32.2 C): Days1119311
0 C (32 F): Ice days (max2055192526
0 C (32 F): Frost days (min213031925230
-10 C (14 F): Days with min2186194483
-20 C (-4 F): Days with min141019374
10 mm (0.39 in): Days with 10 mm or more rain613419275
25 mm (0.98 in): Days with 25 mm or more rain531919406
50 mm (1.97 in): Days with 50 mm or more rain19419822
100 mm (3.94 in): Days with 100 mm or more rain1119821
10 cm (3.9 in): Days with 10 cm or more snowfall526194411
25 cm (9.8 in): Days with 25 cm or more snowfall4919462
50 cm (19.7 in): Days with 50 cm or more snowfall2419464

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1925.

Download the Data

  • Data for Gem 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 (2025-12-31).