Heppner Oregon Climate Data

Monthly Average Climate Data for Heppner Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January26.8 °F42.1 °F1.26 in.
February28.2 °F46.3 °F1.1 in.
March32.1 °F53.6 °F1.39 in.
April36.2 °F59.7 °F1.55 in.
May42.4 °F68.3 °F1.74 in.
June47.5 °F75.5 °F1.4 in.
July52.8 °F85.9 °F0.31 in.
August52.3 °F85.4 °F0.28 in.
September46.0 °F76.4 °F0.43 in.
October37.9 °F63.0 °F1.18 in.
November31.4 °F50.0 °F1.41 in.
December26.2 °F41.2 °F1.26 in.
Annual38.3 °F62.3 °F13.31 in.

Climate Data for Heppner Oregon

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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