Bethel Washington Climate Data

Monthly Average Climate Data for Bethel Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January35.2 °F46.3 °F8.01 in.
February34.8 °F48.8 °F4.8 in.
March37.2 °F53.0 °F5.84 in.
April40.3 °F58.4 °F3.81 in.
May45.7 °F65.4 °F2.07 in.
June50.1 °F69.4 °F1.61 in.
July53.6 °F75.6 °F0.8 in.
August53.8 °F76.3 °F1.07 in.
September50.0 °F70.8 °F1.86 in.
October44.0 °F59.7 °F4.95 in.
November38.2 °F50.7 °F8.22 in.
December34.8 °F45.4 °F8.51 in.
Annual43.1 °F60 °F51.55 in.

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 : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate