Tualatin Oregon Climate Data

Monthly Average Climate Data for Tualatin Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January36.1 °F47.4 °F6.43 in.
February36.4 °F51.2 °F4.94 in.
March38.7 °F56.0 °F4.56 in.
April42.0 °F61.3 °F3.36 in.
May47.4 °F68.4 °F2.36 in.
June51.7 °F73.6 °F1.81 in.
July55.6 °F81.6 °F0.32 in.
August55.5 °F82.1 °F0.41 in.
September51.3 °F76.2 °F1.45 in.
October45.0 °F64.1 °F3.83 in.
November39.7 °F53.0 °F6.42 in.
December35.7 °F46.5 °F7.3 in.
Annual44.6 °F63.5 °F43.19 in.

Climate Data for Tualatin 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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