Chester Montana Climate Data

Monthly Average Climate Data for Chester Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-13.8 °C-0.7 °C11.94 mm
February-12.2 °C1.6 °C9.14 mm
March-7.3 °C6.7 °C11.43 mm
April-1.7 °C13.4 °C24.64 mm
May3.7 °C18.8 °C42.93 mm
June8.2 °C23.1 °C66.55 mm
July11.2 °C28.6 °C33.02 mm
August10.2 °C28.3 °C27.43 mm
September5.3 °C22.3 °C22.86 mm
October-1.2 °C14.3 °C16.76 mm
November-7.4 °C5.9 °C13.21 mm
December-12.4 °C0.4 °C11.43 mm
Annual-1.5 °C13.6 °C291.34 mm

Climate Data for Chester Montana

Average First Frost DateSep.1 - Sep. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 3b : -37.2°C to -34.4°C
Plant Hardiness Zone - 2012Zone 3b : -37.2°C to -34.4°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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