Boneau Montana Climate Data

Monthly Average Climate Data for Boneau Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.4 °C-0.2 °C13.97 mm
February-11.3 °C1.4 °C10.92 mm
March-6.8 °C6.6 °C12.95 mm
April-1.7 °C12.7 °C30.73 mm
May3.3 °C18.1 °C56.9 mm
June7.7 °C22.6 °C84.33 mm
July10.7 °C28.7 °C37.59 mm
August9.6 °C27.9 °C28.7 mm
September5.1 °C21.7 °C34.04 mm
October-0.9 °C13.7 °C24.64 mm
November-6.2 °C5.9 °C18.29 mm
December-10.8 °C0.8 °C11.18 mm
Annual-1.1 °C13.3 °C364.24 mm

Climate Data for Boneau Montana

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4a : -34.4°C to -31.7°C
Plant Hardiness Zone - 2012Zone 4a : -34.4°C to -31.7°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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