Birch Bay Washington Climate Data

Monthly Average Climate Data for Birch Bay Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January35.7 °F44.9 °F6.08 in.
February36.2 °F47.2 °F3.55 in.
March38.6 °F51.0 °F4.42 in.
April42.2 °F56.1 °F3.22 in.
May47.1 °F62.3 °F2.54 in.
June51.6 °F66.6 °F1.89 in.
July54.6 °F71.2 °F1.2 in.
August54.6 °F71.6 °F1.26 in.
September50.8 °F66.1 °F2.3 in.
October45.1 °F57.2 °F4.72 in.
November39.6 °F49.9 °F6.3 in.
December35.6 °F44.7 °F5.73 in.
Annual44.3 °F57.4 °F43.21 in.

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 : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8a : 10°F to 15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate