Sultan Washington Climate Data

Monthly Average Climate Data for Sultan Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.8 °F46.5 °F7.38 in.
February35.0 °F49.7 °F5.12 in.
March37.2 °F53.8 °F5.57 in.
April40.8 °F59.2 °F4.88 in.
May46.0 °F66.0 °F3.65 in.
June50.4 °F70.0 °F3.12 in.
July53.5 °F76.8 °F1.24 in.
August53.4 °F77.7 °F1.39 in.
September49.5 °F71.8 °F2.9 in.
October43.5 °F61.0 °F5.76 in.
November38.2 °F51.2 °F7.8 in.
December34.6 °F45.6 °F7.31 in.
Annual43.1 °F60.8 °F56.12 in.

Climate Data for Sultan Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost50-75 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