Renton Washington Climate Data

Monthly Average Climate Data for Renton Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January2.6 °C8.7 °C141.48 mm
February2.7 °C10.1 °C104.39 mm
March4.1 °C12.3 °C115.32 mm
April6 °C15.2 °C89.41 mm
May9 °C19 °C48.26 mm
June11.5 °C21.4 °C41.66 mm
July13.5 °C24.9 °C17.27 mm
August13.6 °C25.2 °C24.38 mm
September11.4 °C22.1 °C39.88 mm
October7.9 °C16.1 °C109.22 mm
November4.6 °C11.3 °C165.1 mm
December2.4 °C8.3 °C154.43 mm
Annual7.4 °C16.2 °C1050.8 mm

Climate Data for Renton Washington

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate