Glenns Ferry Idaho Climate Data

Monthly Average Climate Data for Glenns Ferry Idaho

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.6 °C4.9 °C41.66 mm
February-3.4 °C8.7 °C17.27 mm
March-0.4 °C14.2 °C21.84 mm
April2.2 °C18.4 °C18.8 mm
May6.7 °C24 °C23.37 mm
June10.3 °C29.2 °C13.72 mm
July14 °C35.6 °C4.32 mm
August12.6 °C34.6 °C5.84 mm
September7.5 °C28.6 °C6.6 mm
October1.8 °C20.2 °C17.53 mm
November-2.4 °C11.1 °C23.11 mm
December-5.1 °C4.8 °C42.67 mm
Annual3.3 °C19.5 °C236.73 mm

Climate Data for Glenns Ferry Idaho

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°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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