Ione Oregon Climate Data

Monthly Average Climate Data for Ione Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January28.1 °F42.1 °F1.31 in.
February29.2 °F47.6 °F1.0 in.
March33.5 °F56.0 °F0.97 in.
April38.3 °F63.0 °F0.9 in.
May45.1 °F72.2 °F1.15 in.
June50.9 °F79.0 °F0.81 in.
July56.5 °F89.0 °F0.18 in.
August55.8 °F88.2 °F0.23 in.
September48.7 °F79.1 °F0.31 in.
October39.6 °F64.8 °F0.83 in.
November32.4 °F50.5 °F1.32 in.
December27.7 °F41.3 °F1.33 in.
Annual40.5 °F64.4 °F10.34 in.

Climate Data for Ione Oregon

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate