Asotin Washington Climate Data

Monthly Average Climate Data for Asotin Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-0.5 °C6.2 °C29.72 mm
February-0.1 °C9.1 °C31.75 mm
March2.2 °C13.6 °C34.04 mm
April5.1 °C17.9 °C29.46 mm
May8.8 °C22.9 °C36.32 mm
June12.2 °C26.7 °C28.7 mm
July15.5 °C33.4 °C13.21 mm
August15.3 °C33.2 °C11.68 mm
September11.4 °C27.6 °C13.46 mm
October6.1 °C18.6 °C26.92 mm
November2 °C10.3 °C35.05 mm
December-0.9 °C5.4 °C30.23 mm
Annual6.4 °C18.7 °C320.54 mm

Climate Data for Asotin Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7b : -15°C to -12.2°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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