College Place Washington Climate Data

Monthly Average Climate Data for College Place Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-1.6 °C5.6 °C45.72 mm
February-0.6 °C8.6 °C36.07 mm
March1.8 °C13.6 °C41.15 mm
April4.6 °C17.7 °C41.66 mm
May8.2 °C22.5 °C43.69 mm
June11.6 °C26.3 °C28.45 mm
July14.6 °C32.1 °C7.62 mm
August14.2 °C31.8 °C10.67 mm
September9.8 °C26.4 °C17.27 mm
October4.9 °C18.3 °C33.53 mm
November1 °C10.1 °C45.21 mm
December-1.7 °C5.2 °C48.26 mm
Annual5.6 °C18.2 °C399.3 mm

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 : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate