Montpelier Idaho Climate Data

Monthly Average Climate Data for Montpelier Idaho

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-14 °C-1.6 °C40.89 mm
February-13.2 °C0.2 °C34.54 mm
March-7.8 °C5.5 °C34.29 mm
April-3.1 °C11.2 °C35.81 mm
May1.3 °C16.9 °C53.09 mm
June5 °C22.6 °C31.24 mm
July8.1 °C28.2 °C16.51 mm
August7.7 °C27.9 °C20.83 mm
September2.3 °C22.5 °C31.5 mm
October-2.7 °C14.5 °C31.75 mm
November-7.7 °C5.7 °C30.23 mm
December-12.7 °C-0.8 °C27.94 mm
Annual-3.1 °C12.7 °C388.62 mm

Climate Data for Montpelier Idaho

Average First Frost DateSep.1 - Sep. 10
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4b : -31.7°C to -28.9°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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