Bothell Washington Climate Data

Monthly Average Climate Data for Bothell Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January2.3 °C8.5 °C142.49 mm
February2.4 °C10 °C100.33 mm
March3.7 °C12.2 °C109.98 mm
April5.6 °C15.1 °C85.85 mm
May8.5 °C18.8 °C57.66 mm
June10.9 °C21.2 °C50.8 mm
July12.8 °C24.7 °C23.11 mm
August12.9 °C25.1 °C28.19 mm
September10.8 °C21.9 °C45.72 mm
October7.4 °C15.9 °C99.31 mm
November4.3 °C11 °C158.75 mm
December2.2 °C8 °C149.86 mm
Annual7 °C16 °C1052.05 mm

Climate Data for Bothell Washington

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 8b : -9.4°C to -6.7°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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