Harper Oregon Climate Data

Monthly Average Climate Data for Harper Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.2 °F37.5 °F1.34 in.
February25.2 °F45.3 °F0.79 in.
March30.7 °F56.3 °F0.74 in.
April35.4 °F63.8 °F0.71 in.
May43.9 °F73.1 °F1.21 in.
June50.8 °F81.5 °F0.86 in.
July57.3 °F92.3 °F0.43 in.
August55.0 °F91.0 °F0.32 in.
September46.0 °F80.8 °F0.35 in.
October35.3 °F66.1 °F0.67 in.
November26.8 °F49.3 °F0.79 in.
December21.5 °F38.1 °F1.5 in.
Annual37.4 °F64.6 °F9.71 in.

Climate Data for Harper Oregon

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
2023 plantmaps.com