Bellingham Washington Climate Data

Monthly Average Climate Data for Bellingham Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.6 °C7.7 °C126.24 mm
February1.8 °C8.9 °C80.77 mm
March3.2 °C11.2 °C96.01 mm
April5.2 °C14.4 °C75.18 mm
May7.8 °C17.9 °C60.2 mm
June10.3 °C20.2 °C44.7 mm
July11.7 °C23.1 °C26.42 mm
August11.7 °C23.2 °C26.67 mm
September9.7 °C20.3 °C51.05 mm
October6.7 °C15.2 °C99.31 mm
November3.8 °C10.3 °C143.51 mm
December1.6 °C7.3 °C117.86 mm
Annual6.3 °C15 °C947.92 mm

Climate Data for Bellingham 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