Pullman Washington Climate Data

Monthly Average Climate Data for Pullman Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.9 °C3.1 °C66.04 mm
February-2.3 °C5.4 °C49.02 mm
March-0.3 °C9.5 °C55.37 mm
April2.2 °C13.7 °C47.24 mm
May5.4 °C18.8 °C46.23 mm
June7.9 °C22.2 °C31.5 mm
July9.9 °C28.6 °C11.18 mm
August9.9 °C29.2 °C12.45 mm
September6.7 °C23.8 °C16.51 mm
October2.8 °C15.5 °C44.7 mm
November-0.4 °C7.3 °C68.33 mm
December-3.4 °C2.5 °C70.87 mm
Annual3 °C15 °C519.44 mm

Climate Data for Pullman Washington

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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