Granite Falls Washington Climate Data

Monthly Average Climate Data for Granite Falls Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January33.2 °F45.0 °F6.95 in.
February33.4 °F48.1 °F4.95 in.
March35.8 °F52.4 °F5.62 in.
April39.8 °F57.5 °F4.42 in.
May45.4 °F64.2 °F3.1 in.
June49.7 °F68.1 °F3.04 in.
July53.3 °F74.7 °F1.22 in.
August53.3 °F75.6 °F1.18 in.
September48.9 °F69.8 °F2.79 in.
October42.5 °F58.9 °F5.57 in.
November36.8 °F49.7 °F7.41 in.
December33.1 °F44.0 °F6.51 in.
Annual42.1 °F59 °F52.76 in.

Climate Data for Granite Falls 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