Harper Oregon Climate Data

Monthly Average Climate Data for Harper Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6 °C3.1 °C34.04 mm
February-3.8 °C7.4 °C20.07 mm
March-0.7 °C13.5 °C18.8 mm
April1.9 °C17.7 °C18.03 mm
May6.6 °C22.8 °C30.73 mm
June10.4 °C27.5 °C21.84 mm
July14.1 °C33.5 °C10.92 mm
August12.8 °C32.8 °C8.13 mm
September7.8 °C27.1 °C8.89 mm
October1.8 °C18.9 °C17.02 mm
November-2.9 °C9.6 °C20.07 mm
December-5.8 °C3.4 °C38.1 mm
Annual3 °C18.1 °C246.64 mm

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 : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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