Friday Harbor Washington Climate Data

Monthly Average Climate Data for Friday Harbor Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.1 °C7.6 °C90.93 mm
February2.9 °C8.4 °C56.39 mm
March3.9 °C10.3 °C56.39 mm
April5.3 °C12.9 °C43.43 mm
May7.6 °C16.2 °C32 mm
June9.8 °C18.7 °C23.11 mm
July11.1 °C21.2 °C16.26 mm
August11.2 °C21.5 °C18.03 mm
September9.7 °C18.9 °C30.99 mm
October7.2 °C13.9 °C75.69 mm
November4.7 °C9.9 °C93.73 mm
December3.1 °C7.4 °C90.93 mm
Annual6.6 °C13.9 °C627.88 mm

Climate Data for Friday Harbor Washington

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost20-30 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 9a : -6.7°C to -3.9°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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