Keller Washington Climate Data

Monthly Average Climate Data for Keller Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.4 °F34.9 °F1.29 in.
February26.0 °F41.1 °F0.87 in.
March31.1 °F51.6 °F1.11 in.
April36.0 °F61.5 °F0.98 in.
May43.6 °F71.3 °F1.17 in.
June49.4 °F78.3 °F1.0 in.
July56.1 °F88.6 °F0.49 in.
August55.7 °F88.3 °F0.34 in.
September48.2 °F78.4 °F0.35 in.
October38.5 °F62.3 °F0.9 in.
November30.8 °F45.3 °F1.19 in.
December24.8 °F35.2 °F1.51 in.
Annual38.7 °F61.4 °F11.2 in.

Climate Data for Keller Washington

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer