Philomath Oregon Climate Data

Monthly Average Climate Data for Philomath Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.8 °F47.2 °F6.59 in.
February35.0 °F51.1 °F5.08 in.
March37.0 °F55.7 °F4.97 in.
April39.8 °F60.2 °F3.37 in.
May44.5 °F67.2 °F2.13 in.
June48.6 °F73.1 °F1.3 in.
July52.3 °F81.6 °F0.3 in.
August52.0 °F82.4 °F0.36 in.
September48.4 °F76.6 °F1.34 in.
October42.6 °F64.0 °F3.4 in.
November38.0 °F52.8 °F6.4 in.
December34.4 °F46.2 °F7.97 in.
Annual42.3 °F63.2 °F43.21 in.

Climate Data for Philomath Oregon

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8b : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate