Spanaway Washington Climate Data

Monthly Average Climate Data for Spanaway Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.3 °C8.2 °C157.48 mm
February1.2 °C9.7 °C103.89 mm
March2.4 °C12 °C122.43 mm
April4.1 °C14.6 °C89.41 mm
May7.2 °C18.5 °C58.93 mm
June9.8 °C20.9 °C46.99 mm
July11.7 °C24.8 °C19.05 mm
August11.7 °C25.2 °C27.43 mm
September9.3 °C21.9 °C43.18 mm
October5.9 °C15.7 °C115.06 mm
November2.9 °C10.7 °C169.42 mm
December1.1 °C7.6 °C157.48 mm
Annual5.7 °C15.8 °C1110.75 mm

Climate Data for Spanaway Washington

Average First Frost DateOct. 21 - Oct. 31
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 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate