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Built 2026-10-19 (19 October 2026)

Valdez WSO Threshold Days by Year (USW00026442)

14 fixed thresholds counted per year at Valdez WSO (USW00026442): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Valdez WSO Thresholds

  • Valdez WSO: nights with a minimum temperature at or below 0 C (32 F) in 80 years, most in 1939 with 225.
  • Valdez WSO: nights with a minimum temperature at or below -10 C (14 F) in 80 years, most in 1950 with 103.
  • Valdez WSO: days with a maximum temperature at or below 0 C (32 F) in 79 years, most in 1955 with 131.
  • Valdez WSO: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 2002 with 80.
  • 14 fixed thresholds have at least one qualifying day at Valdez WSO.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at Valdez WSO Days per year at Valdez WSO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1953. 011221953: 21997: 12013: 1195319972013
Days per year at Valdez WSO 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 Valdez WSO
YearDaysDecade average
195322
199711
201311
First to last qualifying date each year at Valdez WSO For each year, a bar from the first to the last day at Valdez WSO meeting 30 C (86 F). 1953: 25 June 1953 to 26 June 19531997: 26 June 1997 to 26 June 19972013: 17 June 2013 to 17 June 2013195319972013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Valdez WSO meeting 30 C (86 F).
First to last qualifying date each year at Valdez WSO
YearFirst dateLast date
19531953-06-251953-06-26
19971997-06-261997-06-26
20132013-06-172013-06-17

Every Fixed Threshold

Fixed thresholds at Valdez WSO
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3219531
90 F (32.2 C): Days1120131
0 C (32 F): Ice days (max79131195562
0 C (32 F): Frost days (min802251939186
-10 C (14 F): Days with min80103195020
-20 C (-4 F): Days with min461819512
-30 C (-22 F): Days with min2119471
10 mm (0.39 in): Days with 10 mm or more rain7780200280
25 mm (0.98 in): Days with 25 mm or more rain7731201331
50 mm (1.97 in): Days with 50 mm or more rain68820138
100 mm (3.94 in): Days with 100 mm or more rain6119301
10 cm (3.9 in): Days with 10 cm or more snowfall6041199140
25 cm (9.8 in): Days with 25 cm or more snowfall6015199013
50 cm (19.7 in): Days with 50 cm or more snowfall33519563

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

  • Data for Valdez WSO 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).