Birch Bay Washington Climate Data

Monthly Average Climate Data for Birch Bay Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January2.1 °C7.2 °C154.43 mm
February2.3 °C8.4 °C90.17 mm
March3.7 °C10.6 °C112.27 mm
April5.7 °C13.4 °C81.79 mm
May8.4 °C16.8 °C64.52 mm
June10.9 °C19.2 °C48.01 mm
July12.6 °C21.8 °C30.48 mm
August12.6 °C22 °C32 mm
September10.4 °C18.9 °C58.42 mm
October7.3 °C14 °C119.89 mm
November4.2 °C9.9 °C160.02 mm
December2 °C7.1 °C145.54 mm
Annual6.9 °C14.1 °C1097.54 mm

Climate Data for Birch Bay Washington

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 8b : -9.4°C to -6.7°C
Plant Hardiness Zone - 2012Zone 8a : -12.2°C to -9.4°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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