Joliet Montana Climate Data

Monthly Average Climate Data for Joliet Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.1 °C2.9 °C14.22 mm
February-9.1 °C4.6 °C14.99 mm
March-4.8 °C10.3 °C22.1 mm
April-0.8 °C14.5 °C46.48 mm
May4.3 °C19.6 °C68.58 mm
June8.7 °C24.9 °C54.86 mm
July11.9 °C30.6 °C24.89 mm
August10.7 °C29.9 °C21.34 mm
September5.9 °C24.1 °C32.51 mm
October-0.1 °C15.7 °C40.39 mm
November-5.3 °C8.3 °C17.27 mm
December-9.9 °C2.8 °C14.73 mm
Annual0.1 °C15.7 °C372.36 mm

Climate Data for Joliet Montana

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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