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Built 2026-10-19 (19 October 2026)

Whidbey Island NAS Threshold Days by Year (USW00024255)

8 fixed thresholds counted per year at Whidbey Island NAS (USW00024255): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Whidbey Island NAS Thresholds

  • Whidbey Island NAS: nights with a minimum temperature at or below 0 C (32 F) in 70 years, most in 1985 with 79.
  • Whidbey Island NAS: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1990 with 22.
  • Whidbey Island NAS: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 1950 with 18.
  • Whidbey Island NAS: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1986 with 4.
  • 8 fixed thresholds have at least one qualifying day at Whidbey Island NAS.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Whidbey Island NAS Days per year at Whidbey Island NAS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 1 in 1951. 001111951: 11960: 11967: 11976: 11986: 11993: 1195119601967197619861993
Days per year at Whidbey Island NAS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 1 in 1951.
Days at or above 30 C (86 F) per year at Whidbey Island NAS
YearDaysDecade average
195111
196011
196711
197611
198611
199311
First to last qualifying date each year at Whidbey Island NAS For each year, a bar from the first to the last day at Whidbey Island NAS meeting 30 C (86 F). 1951: 11 July 1951 to 11 July 19511960: 8 August 1960 to 8 August 19601967: 15 September 1967 to 15 September 19671976: 20 September 1976 to 20 September 19761986: 6 September 1986 to 6 September 19861993: 4 August 1993 to 4 August 1993195119601967197619861993JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Whidbey Island NAS meeting 30 C (86 F).
First to last qualifying date each year at Whidbey Island NAS
YearFirst dateLast date
19511951-07-111951-07-11
19601960-08-081960-08-08
19671967-09-151967-09-15
19761976-09-201976-09-20
19861986-09-061986-09-06
19931993-08-041993-08-04

Every Fixed Threshold

Fixed thresholds at Whidbey Island NAS
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days6119511
0 C (32 F): Ice days (max381819501
0 C (32 F): Frost days (min7079198519
-10 C (14 F): Days with min291819501
10 mm (0.39 in): Days with 10 mm or more rain692219902
25 mm (0.98 in): Days with 25 mm or more rain31419861
50 mm (1.97 in): Days with 50 mm or more rain4119461
10 cm (3.9 in): Days with 10 cm or more snowfall18219621

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 Whidbey Island NAS 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).