College Place Washington Climate Data

Monthly Average Climate Data for College Place Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January29.1 °F42.0 °F1.8 in.
February30.9 °F47.4 °F1.42 in.
March35.3 °F56.5 °F1.62 in.
April40.2 °F63.9 °F1.64 in.
May46.8 °F72.5 °F1.72 in.
June52.8 °F79.4 °F1.12 in.
July58.2 °F89.7 °F0.3 in.
August57.5 °F89.2 °F0.42 in.
September49.6 °F79.6 °F0.68 in.
October40.8 °F64.9 °F1.32 in.
November33.8 °F50.1 °F1.78 in.
December29.0 °F41.4 °F1.9 in.
Annual42 °F64.7 °F15.72 in.

Climate Data for College Place Washington

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate