Yelm Washington Climate Data

Monthly Average Climate Data for Yelm Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.2 °C8.1 °C173.74 mm
February1.1 °C9.7 °C118.36 mm
March2.3 °C12.1 °C134.37 mm
April3.9 °C14.9 °C99.82 mm
May6.9 °C18.9 °C58.93 mm
June9.4 °C21.4 °C48.01 mm
July11.3 °C25.2 °C17.02 mm
August11.4 °C25.7 °C25.65 mm
September9.1 °C22.4 °C47.5 mm
October5.8 °C16 °C117.6 mm
November2.8 °C10.7 °C202.44 mm
December1.1 °C7.5 °C183.9 mm
Annual5.5 °C16.1 °C1227.34 mm

Climate Data for Yelm Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost50-75 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