Bethel Washington Climate Data

Monthly Average Climate Data for Bethel Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.8 °C7.9 °C203.45 mm
February1.6 °C9.3 °C121.92 mm
March2.9 °C11.7 °C148.34 mm
April4.6 °C14.7 °C96.77 mm
May7.6 °C18.6 °C52.58 mm
June10.1 °C20.8 °C40.89 mm
July12 °C24.2 °C20.32 mm
August12.1 °C24.6 °C27.18 mm
September10 °C21.6 °C47.24 mm
October6.7 °C15.4 °C125.73 mm
November3.4 °C10.4 °C208.79 mm
December1.6 °C7.4 °C216.15 mm
Annual6.2 °C15.6 °C1309.36 mm

Climate Data for Bethel Washington

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