Yelm Washington Climate Data

Monthly Average Climate Data for Yelm Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.2 °F46.5 °F6.84 in.
February34.0 °F49.5 °F4.66 in.
March36.1 °F53.8 °F5.29 in.
April39.0 °F58.9 °F3.93 in.
May44.4 °F66.0 °F2.32 in.
June48.9 °F70.5 °F1.89 in.
July52.4 °F77.4 °F0.67 in.
August52.5 °F78.2 °F1.01 in.
September48.3 °F72.4 °F1.87 in.
October42.4 °F60.8 °F4.63 in.
November37.1 °F51.2 °F7.97 in.
December33.9 °F45.5 °F7.24 in.
Annual41.9 °F60.9 °F48.32 in.

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 : 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