Siletz Oregon Climate Data

Monthly Average Climate Data for Siletz Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January4.3 °C10.7 °C297.94 mm
February3.9 °C11.6 °C203.2 mm
March4.4 °C12.2 °C219.46 mm
April5.5 °C15.3 °C150.37 mm
May7.7 °C18.1 °C98.04 mm
June9.6 °C19.9 °C68.58 mm
July10.9 °C22.4 °C18.29 mm
August10.8 °C23.4 °C27.94 mm
September9.9 °C22.4 °C57.91 mm
October7.9 °C17.4 °C154.94 mm
November5.9 °C12.7 °C285.75 mm
December4 °C10.1 °C322.07 mm
Annual7.1 °C16.4 °C1904.49 mm

Climate Data for Siletz Oregon

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 9b : -3.9°C to -1.1°C
Plant Hardiness Zone - 2012Zone 9a : -6.7°C to -3.9°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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