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

King Salmon Threshold Days by Year (USW00025503)

11 fixed thresholds counted per year at King Salmon (USW00025503): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for King Salmon Thresholds

  • King Salmon: days with a maximum temperature at or below 0 C (32 F) in 82 years, most in 1966 with 129.
  • King Salmon: nights with a minimum temperature at or below 0 C (32 F) in 81 years, most in 1956 with 235.
  • King Salmon: nights with a minimum temperature at or below -10 C (14 F) in 81 years, most in 1956 with 134.
  • King Salmon: nights with a minimum temperature at or below -20 C (-4 F) in 81 years, most in 1956 with 88.
  • 11 fixed thresholds have at least one qualifying day at King Salmon.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at King Salmon Days per year at King Salmon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1953. 011221951: 11953: 22015: 22019: 21951195320152019
Days per year at King Salmon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1953.
Days at or above 30 C (86 F) per year at King Salmon
YearDaysDecade average
195111.5
195321.5
201522
201922
First to last qualifying date each year at King Salmon For each year, a bar from the first to the last day at King Salmon meeting 30 C (86 F). 1951: 10 July 1951 to 10 July 19511953: 26 June 1953 to 27 June 19532015: 15 June 2015 to 16 June 20152019: 4 July 2019 to 5 July 20191951195320152019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at King Salmon meeting 30 C (86 F).
First to last qualifying date each year at King Salmon
YearFirst dateLast date
19511951-07-101951-07-10
19531953-06-261953-06-27
20152015-06-152015-06-16
20192019-07-042019-07-05

Every Fixed Threshold

Fixed thresholds at King Salmon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4219532
0 C (32 F): Ice days (max82129196669
0 C (32 F): Frost days (min812351956131
-10 C (14 F): Days with min81134195680
-20 C (-4 F): Days with min8188195646
-30 C (-22 F): Days with min7230195412
-40 C (-40 F): Days with min12419751
10 mm (0.39 in): Days with 10 mm or more rain8125201810
25 mm (0.98 in): Days with 25 mm or more rain38420254
10 cm (3.9 in): Days with 10 cm or more snowfall51719902
25 cm (9.8 in): Days with 25 cm or more snowfall8119531

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

  • Data for King Salmon 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).