Granite Falls Washington Climate Data

Monthly Average Climate Data for Granite Falls Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January0.7 °C7.2 °C176.53 mm
February0.8 °C8.9 °C125.73 mm
March2.1 °C11.3 °C142.75 mm
April4.3 °C14.2 °C112.27 mm
May7.4 °C17.9 °C78.74 mm
June9.8 °C20.1 °C77.22 mm
July11.8 °C23.7 °C30.99 mm
August11.8 °C24.2 °C29.97 mm
September9.4 °C21 °C70.87 mm
October5.8 °C14.9 °C141.48 mm
November2.7 °C9.8 °C188.21 mm
December0.6 °C6.7 °C165.35 mm
Annual5.6 °C15 °C1340.11 mm

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 : -9.4°C to -6.7°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate