Spanaway Washington Climate Data

Monthly Average Climate Data for Spanaway Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.4 °F46.7 °F6.2 in.
February34.1 °F49.4 °F4.09 in.
March36.3 °F53.6 °F4.82 in.
April39.4 °F58.3 °F3.52 in.
May45.0 °F65.3 °F2.32 in.
June49.6 °F69.7 °F1.85 in.
July53.0 °F76.6 °F0.75 in.
August53.1 °F77.4 °F1.08 in.
September48.8 °F71.5 °F1.7 in.
October42.7 °F60.3 °F4.53 in.
November37.3 °F51.2 °F6.67 in.
December33.9 °F45.7 °F6.2 in.
Annual42.3 °F60.5 °F43.73 in.

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