Wilsonville Oregon Climate Data

Monthly Average Climate Data for Wilsonville Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January36.1 °F47.5 °F6.31 in.
February36.4 °F51.2 °F4.42 in.
March38.7 °F55.9 °F4.88 in.
April41.9 °F61.0 °F3.36 in.
May47.2 °F68.1 °F2.61 in.
June51.4 °F73.4 °F1.64 in.
July55.3 °F81.6 °F0.37 in.
August55.2 °F82.1 °F0.45 in.
September51.3 °F76.3 °F1.49 in.
October44.9 °F64.0 °F3.82 in.
November39.6 °F53.0 °F6.1 in.
December35.6 °F46.6 °F7.17 in.
Annual44.5 °F63.4 °F42.62 in.

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 : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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