Rupert Idaho Climate Data

Monthly Average Climate Data for Rupert Idaho

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.3 °C2.2 °C30.73 mm
February-5.7 °C5.2 °C17.78 mm
March-2.2 °C10.9 °C25.4 mm
April0.4 °C15.1 °C26.42 mm
May4.8 °C20.4 °C36.32 mm
June8.5 °C25.3 °C18.8 mm
July12.1 °C31.1 °C6.1 mm
August11 °C30.6 °C10.16 mm
September6.4 °C25 °C14.99 mm
October1.1 °C17.3 °C21.59 mm
November-3.8 °C8.8 °C22.35 mm
December-7.3 °C2.4 °C31.75 mm
Annual1.5 °C16.2 °C262.39 mm

Climate Data for Rupert Idaho

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate