Pullman Washington Climate Data

Monthly Average Climate Data for Pullman Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January26.7 °F37.6 °F2.6 in.
February27.8 °F41.8 °F1.93 in.
March31.5 °F49.1 °F2.18 in.
April35.9 °F56.7 °F1.86 in.
May41.8 °F65.9 °F1.82 in.
June46.2 °F71.9 °F1.24 in.
July49.8 °F83.4 °F0.44 in.
August49.8 °F84.5 °F0.49 in.
September44.1 °F74.9 °F0.65 in.
October37.0 °F59.9 °F1.76 in.
November31.3 °F45.2 °F2.69 in.
December25.8 °F36.5 °F2.79 in.
Annual37.3 °F59 °F20.45 in.

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 : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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