Troutdale Oregon Climate Data

Monthly Average Climate Data for Troutdale Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January36.1 °F46.0 °F6.6 in.
February36.8 °F50.1 °F4.54 in.
March39.0 °F55.7 °F5.07 in.
April42.7 °F61.2 °F3.95 in.
May48.1 °F68.4 °F3.04 in.
June52.4 °F73.3 °F2.37 in.
July56.5 °F81.2 °F0.75 in.
August56.7 °F81.9 °F0.69 in.
September52.3 °F75.6 °F1.69 in.
October46.4 °F63.9 °F4.34 in.
November40.7 °F52.6 °F7.26 in.
December36.1 °F45.6 °F7.22 in.
Annual45.3 °F63 °F47.52 in.

Climate Data for Troutdale Oregon

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 11 - Apr. 20
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