Friday Harbor Washington Climate Data

Monthly Average Climate Data for Friday Harbor Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January37.6 °F45.7 °F3.58 in.
February37.2 °F47.1 °F2.22 in.
March39.0 °F50.6 °F2.22 in.
April41.6 °F55.3 °F1.71 in.
May45.7 °F61.2 °F1.26 in.
June49.7 °F65.6 °F0.91 in.
July51.9 °F70.1 °F0.64 in.
August52.1 °F70.7 °F0.71 in.
September49.4 °F66.1 °F1.22 in.
October45.0 °F57.1 °F2.98 in.
November40.5 °F49.8 °F3.69 in.
December37.5 °F45.4 °F3.58 in.
Annual43.9 °F57.1 °F24.72 in.

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 : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate