Lake Mary Ronan Montana Climate Data

Monthly Average Climate Data for Lake Mary Ronan Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C0.1 °C39.12 mm
February-8.9 °C2 °C30.99 mm
March-6 °C7.2 °C32.51 mm
April-2.6 °C11.5 °C40.89 mm
May1.6 °C17 °C48.26 mm
June5.1 °C20.7 °C70.36 mm
July8.4 °C27.1 °C28.45 mm
August7.9 °C26.9 °C23.88 mm
September3.9 °C20.6 °C32.51 mm
October-1.3 °C11.8 °C40.39 mm
November-5.5 °C4.4 °C41.66 mm
December-8.6 °C-0.6 °C40.13 mm
Annual-1.3 °C12.4 °C469.15 mm

Climate Data for Lake Mary Ronan 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 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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