Spokane Washington Climate Data

Monthly Average Climate Data for Spokane Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.7 °C2.6 °C55.12 mm
February-3.2 °C5.4 °C39.12 mm
March-0.9 °C10.3 °C50.8 mm
April2 °C14.9 °C37.34 mm
May6.2 °C20.3 °C42.67 mm
June9.7 °C23.9 °C38.1 mm
July12.4 °C30 °C12.19 mm
August11.7 °C29.9 °C11.18 mm
September7.4 °C24.3 °C15.75 mm
October2.7 °C15.8 °C33.78 mm
November-0.8 °C7.2 °C56.9 mm
December-3.6 °C2.3 °C66.04 mm
Annual3.3 °C15.6 °C458.99 mm

Climate Data for Spokane Washington

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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