Bonney Lake Washington Climate Data

Monthly Average Climate Data for Bonney Lake Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.3 °C7.8 °C160.27 mm
February1.2 °C9.2 °C108.2 mm
March2.5 °C11.6 °C126.75 mm
April4.2 °C14.3 °C102.36 mm
May7.3 °C18.2 °C74.17 mm
June9.8 °C20.7 °C62.48 mm
July11.7 °C24.5 °C25.65 mm
August11.9 °C24.9 °C32.77 mm
September9.6 °C21.6 °C48.01 mm
October6.1 °C15.4 °C117.35 mm
November3.1 °C10.4 °C174.5 mm
December1.1 °C7.3 °C159 mm
Annual42.5 °C59.9 °C46.91 mm

Climate Data for Bonney Lake Washington

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost40-50 Days
Plant Hardiness ZoneZone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate