Ritzville Washington Climate Data

Monthly Average Climate Data for Ritzville Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.4 °C2.1 °C41.15 mm
February-3.2 °C5.6 °C28.7 mm
March-1 °C10.8 °C34.29 mm
April1.1 °C15.4 °C23.88 mm
May5 °C20.7 °C27.94 mm
June8 °C24.6 °C22.1 mm
July11.3 °C30.5 °C7.37 mm
August11.3 °C30.1 °C7.11 mm
September7.2 °C24.8 °C10.92 mm
October2.1 °C16.4 °C25.65 mm
November-1.8 °C7.4 °C35.05 mm
December-4.8 °C1.8 °C41.15 mm
Annual2.6 °C15.9 °C305.31 mm

Climate Data for Ritzville Washington

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
2024 plantmaps.com