Dayton Washington Climate Data

Monthly Average Climate Data for Dayton Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January27.8 °F40.5 °F2.11 in.
February29.6 °F45.0 °F1.73 in.
March34.6 °F53.2 °F2.24 in.
April38.6 °F60.3 °F1.8 in.
May45.5 °F69.0 °F1.74 in.
June50.6 °F76.1 °F1.24 in.
July56.3 °F87.1 °F0.39 in.
August56.2 °F86.9 °F0.47 in.
September49.5 °F77.1 °F0.73 in.
October40.0 °F62.6 °F1.63 in.
November32.6 °F48.1 °F2.38 in.
December27.5 °F39.6 °F2.38 in.
Annual40.7 °F62.1 °F18.84 in.

Climate Data for Dayton Washington

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate