Sedro-Woolley Washington Climate Data

Monthly Average Climate Data for Sedro-Woolley Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.7 °C8 °C150.62 mm
February1.6 °C9.2 °C100.33 mm
March3.1 °C11.4 °C118.11 mm
April4.9 °C14.6 °C102.87 mm
May7.6 °C18.3 °C80.77 mm
June9.9 °C20.6 °C64.77 mm
July11.3 °C23.7 °C30.99 mm
August11.2 °C24.2 °C36.83 mm
September9.2 °C20.9 °C71.12 mm
October6 °C15.5 °C119.89 mm
November3.5 °C10.6 °C177.29 mm
December1.4 °C7.4 °C131.06 mm
Annual42.7 °C59.7 °C46.64 mm

Climate Data for Sedro-Woolley Washington

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost40-50 Days
Plant Hardiness ZoneZone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate