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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Shishmaref Threshold Days by Year (USC00508437)

11 fixed thresholds counted per year at Shishmaref (USC00508437): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Shishmaref Thresholds

  • Shishmaref: days with a maximum temperature at or below 0 C (32 F) in 19 years, most in 1924 with 222.
  • Shishmaref: nights with a minimum temperature at or below 0 C (32 F) in 19 years, most in 1949 with 295.
  • Shishmaref: nights with a minimum temperature at or below -10 C (14 F) in 19 years, most in 1924 with 201.
  • Shishmaref: nights with a minimum temperature at or below -20 C (-4 F) in 19 years, most in 1920 with 123.
  • 11 fixed thresholds have at least one qualifying day at Shishmaref.
19 years with a qualifying day
Nights at or below 0 C (32 F) per year at Shishmaref Days per year at Shishmaref with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 295 in 1949. 01002003001920: 2601924: 2611926: 2431928: 2381932: 2591933: 2681934: 2531935: 2631936: 2481942: 2511944: 2521945: 2501946: 2541947: 2561948: 2651949: 2951950: 2461951: 2582025: 1631920192619321934193619441946194819502025
Days per year at Shishmaref with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 295 in 1949.
Nights at or below 0 C (32 F) per year at Shishmaref
YearDaysDecade average
1920260250.5
1924261250.5
1926243250.5
1928238250.5
1932259258.2
1933268258.2
1934253258.2
1935263258.2
1936248258.2
1942251260.4
1944252260.4
1945250260.4
1946254260.4
1947256260.4
1948265260.4
1949295260.4
1950246252
1951258252
2025163163
First to last qualifying date each year at Shishmaref For each year, a bar from the first to the last day at Shishmaref meeting 0 C (32 F). 1920: 1 January 1920 to 31 December 19201924: 1 January 1924 to 31 December 19241926: 1 January 1926 to 31 December 19261928: 1 January 1928 to 31 December 19281932: 1 January 1932 to 31 December 19321933: 1 January 1933 to 31 December 19331934: 1 January 1934 to 31 December 19341935: 1 January 1935 to 31 December 19351936: 1 January 1936 to 31 December 19361942: 1 January 1942 to 31 December 19421944: 1 January 1944 to 31 December 19441945: 1 January 1945 to 31 December 19451946: 1 January 1946 to 31 December 19461947: 1 January 1947 to 31 December 19471948: 1 January 1948 to 31 December 19481949: 1 January 1949 to 31 December 19491950: 1 January 1950 to 31 December 19501951: 1 January 1951 to 31 December 19512025: 1 January 2025 to 29 December 20251920192819341942194619492025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Shishmaref meeting 0 C (32 F).
First to last qualifying date each year at Shishmaref
YearFirst dateLast date
19201920-01-011920-12-31
19241924-01-011924-12-31
19261926-01-011926-12-31
19281928-01-011928-12-31
19321932-01-011932-12-31
19331933-01-011933-12-31
19341934-01-011934-12-31
19351935-01-011935-12-31
19361936-01-011936-12-31
19421942-01-011942-12-31
19441944-01-011944-12-31
19451945-01-011945-12-31
19461946-01-011946-12-31
19471947-01-011947-12-31
19481948-01-011948-12-31
19491949-01-011949-12-31
19501950-01-011950-12-31
19511951-01-011951-12-31
20252025-01-012025-12-29

Every Fixed Threshold

Fixed thresholds at Shishmaref
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max192221924126
0 C (32 F): Frost days (min192951949163
-10 C (14 F): Days with min192011924118
-20 C (-4 F): Days with min19123192064
-30 C (-22 F): Days with min1951192011
-40 C (-40 F): Days with min6419471
10 mm (0.39 in): Days with 10 mm or more rain12919512
25 mm (0.98 in): Days with 25 mm or more rain5219492
50 mm (1.97 in): Days with 50 mm or more rain1119281
10 cm (3.9 in): Days with 10 cm or more snowfall2219492
25 cm (9.8 in): Days with 25 cm or more snowfall1119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

  • Data for Shishmaref 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).