Willamina Oregon Climate Data

Monthly Average Climate Data for Willamina Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January35.3 °F47.0 °F7.69 in.
February35.5 °F50.8 °F5.75 in.
March37.5 °F55.3 °F5.25 in.
April40.0 °F60.9 °F3.79 in.
May44.8 °F68.4 °F2.11 in.
June48.8 °F73.9 °F1.2 in.
July52.3 °F82.8 °F0.26 in.
August52.4 °F83.7 °F0.35 in.
September49.1 °F77.2 °F1.47 in.
October43.5 °F64.0 °F3.79 in.
November38.6 °F52.6 °F7.4 in.
December34.8 °F46.2 °F9.17 in.
Annual42.7 °F63.6 °F48.23 in.

Climate Data for Willamina Oregon

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 8b : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
2024 plantmaps.com