Wilsonville Oregon Climate Data

Monthly Average Climate Data for Wilsonville Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January2.3 °C8.6 °C160.27 mm
February2.4 °C10.7 °C112.27 mm
March3.7 °C13.3 °C123.95 mm
April5.5 °C16.1 °C85.34 mm
May8.4 °C20.1 °C66.29 mm
June10.8 °C23 °C41.66 mm
July12.9 °C27.6 °C9.4 mm
August12.9 °C27.8 °C11.43 mm
September10.7 °C24.6 °C37.85 mm
October7.2 °C17.8 °C97.03 mm
November4.2 °C11.7 °C154.94 mm
December2 °C8.1 °C182.12 mm
Annual6.9 °C17.5 °C1082.55 mm

Climate Data for Wilsonville Oregon

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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