Ione Oregon Climate Data

Monthly Average Climate Data for Ione Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.2 °C5.6 °C33.27 mm
February-1.6 °C8.7 °C25.4 mm
March0.8 °C13.3 °C24.64 mm
April3.5 °C17.2 °C22.86 mm
May7.3 °C22.3 °C29.21 mm
June10.5 °C26.1 °C20.57 mm
July13.6 °C31.7 °C4.57 mm
August13.2 °C31.2 °C5.84 mm
September9.3 °C26.2 °C7.87 mm
October4.2 °C18.2 °C21.08 mm
November0.2 °C10.3 °C33.53 mm
December-2.4 °C5.2 °C33.78 mm
Annual4.7 °C18 °C262.62 mm

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 : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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