Des Moines Washington Climate Data

Monthly Average Climate Data for Des Moines Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January36.6 °F47.6 °F6.07 in.
February36.6 °F50.2 °F4.11 in.
March39.2 °F54.2 °F4.7 in.
April42.6 °F59.2 °F3.39 in.
May48.0 °F66.1 °F1.96 in.
June52.6 °F70.4 °F1.71 in.
July56.2 °F76.7 °F0.75 in.
August56.3 °F77.2 °F0.98 in.
September52.4 °F71.5 °F1.62 in.
October46.0 °F60.8 °F4.19 in.
November40.1 °F52.1 °F6.21 in.
December36.2 °F46.8 °F6.07 in.
Annual45.2 °F61.1 °F41.76 in.

Climate Data for Des Moines Washington

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost20-30 Days
Plant Hardiness Zone - 2023Zone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate