DuPont Washington Climate Data

Monthly Average Climate Data for DuPont Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.7 °F46.8 °F6.86 in.
February34.3 °F49.6 °F4.52 in.
March36.5 °F53.8 °F5.24 in.
April39.6 °F58.6 °F3.63 in.
May45.0 °F65.6 °F2.18 in.
June49.7 °F70.0 °F1.74 in.
July53.1 °F76.6 °F0.7 in.
August53.2 °F77.4 °F0.94 in.
September48.9 °F71.7 °F1.55 in.
October43.0 °F60.4 °F4.89 in.
November37.5 °F51.3 °F7.45 in.
December34.2 °F45.8 °F7.09 in.
Annual42.5 °F60.6 °F46.79 in.

Climate Data for DuPont Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost40-50 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
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