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Built 2026-10-19 (19 October 2026)

Seward AP Threshold Days by Year (USW00026438)

16 fixed thresholds counted per year at Seward AP (USW00026438): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Seward AP Thresholds

  • Seward AP: days with a maximum temperature at or below 0 C (32 F) in 109 years, most in 1956 with 93.
  • Seward AP: nights with a minimum temperature at or below 0 C (32 F) in 109 years, most in 1933 with 195.
  • Seward AP: nights with a minimum temperature at or below -10 C (14 F) in 109 years, most in 1956 with 61.
  • Seward AP: days with 10 mm (0.39 in) or more of precipitation in 104 years, most in 1931 with 82.
  • 16 fixed thresholds have at least one qualifying day at Seward AP.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Seward AP Days per year at Seward AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1915. 011221915: 21966: 11990: 11999: 12013: 12019: 1191519661990199920132019
Days per year at Seward AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1915.
Days at or above 30 C (86 F) per year at Seward AP
YearDaysDecade average
191522
196611
199011
199911
201311
201911
First to last qualifying date each year at Seward AP For each year, a bar from the first to the last day at Seward AP meeting 30 C (86 F). 1915: 21 July 1915 to 29 July 19151966: 12 August 1966 to 12 August 19661990: 13 August 1990 to 13 August 19901999: 4 July 1999 to 4 July 19992013: 17 June 2013 to 17 June 20132019: 16 August 2019 to 16 August 2019191519661990199920132019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Seward AP meeting 30 C (86 F).
First to last qualifying date each year at Seward AP
YearFirst dateLast date
19151915-07-211915-07-29
19661966-08-121966-08-12
19901990-08-131990-08-13
19991999-07-041999-07-04
20132013-06-172013-06-17
20192019-08-162019-08-16

Every Fixed Threshold

Fixed thresholds at Seward AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days6219151
35 C (95 F): Days1119661
90 F (32.2 C): Days1119661
0 C (32 F): Ice days (max10993195643
0 C (32 F): Frost days (min109195193398
-10 C (14 F): Days with min10961195633
-20 C (-4 F): Days with min421319471
20 C (68 F): Tropical nights (min3119111
10 mm (0.39 in): Days with 10 mm or more rain10482193132
25 mm (0.98 in): Days with 25 mm or more rain1043319818
50 mm (1.97 in): Days with 50 mm or more rain991320023
100 mm (3.94 in): Days with 100 mm or more rain22319861
200 mm (7.87 in): Days with 200 mm or more rain3119341
10 cm (3.9 in): Days with 10 cm or more snowfall541419527
25 cm (9.8 in): Days with 25 cm or more snowfall32519741
50 cm (19.7 in): Days with 50 cm or more snowfall1119741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

  • Data for Seward AP 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).