Stevenson Washington Climate Data

Monthly Average Climate Data for Stevenson Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.6 °C6.4 °C294.13 mm
February2.1 °C9.1 °C209.04 mm
March3.4 °C12.4 °C232.66 mm
April5.6 °C15.7 °C161.04 mm
May8.6 °C19.8 °C95.25 mm
June11.3 °C22.5 °C62.23 mm
July13.7 °C26.9 °C15.24 mm
August13.7 °C27.5 °C17.02 mm
September10.8 °C24.3 °C60.2 mm
October7.5 °C17.7 °C184.66 mm
November4.2 °C10.6 °C304.04 mm
December1.7 °C6.4 °C347.47 mm
Annual7 °C16.6 °C1982.98 mm

Climate Data for Stevenson Washington

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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