Keller Washington Climate Data

Monthly Average Climate Data for Keller Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.2 °C1.6 °C32.77 mm
February-3.3 °C5.1 °C22.1 mm
March-0.5 °C10.9 °C28.19 mm
April2.2 °C16.4 °C24.89 mm
May6.4 °C21.8 °C29.72 mm
June9.7 °C25.7 °C25.4 mm
July13.4 °C31.4 °C12.45 mm
August13.2 °C31.3 °C8.64 mm
September9 °C25.8 °C8.89 mm
October3.6 °C16.8 °C22.86 mm
November-0.7 °C7.4 °C30.23 mm
December-4 °C1.8 °C38.35 mm
Annual38.7 °C61.4 °C11.2 mm

Climate Data for Keller Washington

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness ZoneZone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer