OWSC

WA State Records
Extreme Days

Hottest temperature ever recorded: 118 F at Ice Harbor Dam on 5 August 1961 and at Wahluke on 24 July 1928.
Lowest temperature ever recorded: -48 F at Mazama and Winthrop on 30 December 1968.
Most rain in 24 hours: 14.26" at Mt. Mitchell #2, 23-24 November 1986.
Most snow in 24 hours: 65" at Crystal Mountain on 24 February 1994.
Maximum snow depth: 367" at Rainier Paradise on 9 & 10 March 1956.


Extreme Seasons & Years

Wettest year at a station: 185" at Wynoochee Oxbow in 1931.
Driest year at a station: 2.61" at Wahluke in 1930.
Most snowfall in 12 months: 1140" (95ft, U.S. record) at Mt Baker ski area, 1998-99.
Most rainy days in a row: 55 at Centralia, November 1996-February 1997.
Most dry days in a row: 140 at White Swan, April-September 1973.
Warmest year statewide: 1934 (50.9 F).
Coldest year statewide: 1955 (44.8 F).


Extremes for Towns & Cities (1981-2010 Averages)*

Warmest (annual): Vancouver (average annual temperature 54.1 F).
Warmest (month): Pasco (average July max temperature 91.3 F).
Coldest (annual): Republic (average annual temperature 43.9 F).
Coldest (month): Winthrop (average December min temperature 14.4 F).
Wettest (annual): Forks (119.7")
Wettest (month): Baring (average November precipitation: 18.94").
Driest (annual): Sunnyside (7.50").
Driest (month): Goldendale (average July precipitation: 0.10").

*Data

Top 10 Weather Events of 20th Century

Climate Extremes for all 50 States