Ellensburg Washington Climate Data

Monthly Average Climate Data for Ellensburg Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.4 °F35.7 °F1.25 in.
February24.8 °F42.8 °F0.72 in.
March29.4 °F51.8 °F0.81 in.
April34.8 °F59.7 °F0.73 in.
May42.5 °F68.7 °F0.77 in.
June48.8 °F75.1 °F0.55 in.
July54.4 °F84.6 °F0.31 in.
August53.5 °F84.4 °F0.17 in.
September45.3 °F75.8 °F0.39 in.
October35.5 °F61.3 °F0.78 in.
November27.8 °F45.7 °F1.05 in.
December22.3 °F35.5 °F1.68 in.
Annual36.8 °F60.1 °F9.21 in.

Climate Data for Ellensburg Washington

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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