Cathlamet Washington Climate Data

Monthly Average Climate Data for Cathlamet Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.8 °C8.6 °C284.73 mm
February1.4 °C10.2 °C178.56 mm
March2.6 °C12.1 °C197.1 mm
April4.1 °C14.9 °C165.86 mm
May6.8 °C17.9 °C79.5 mm
June9.2 °C19.8 °C55.63 mm
July11.2 °C22.8 °C20.07 mm
August11.2 °C23.6 °C29.97 mm
September9.2 °C22.2 °C69.09 mm
October5.9 °C17 °C164.08 mm
November3.2 °C11.3 °C307.09 mm
December1.6 °C8.3 °C318.77 mm
Annual5.7 °C15.7 °C1870.45 mm

Climate Data for Cathlamet Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
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
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