Charlo Montana Climate Data

Monthly Average Climate Data for Charlo Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.3 °F34.4 °F1.0 in.
February21.7 °F38.0 °F0.82 in.
March27.1 °F48.0 °F0.82 in.
April33.1 °F56.2 °F1.4 in.
May40.1 °F65.8 °F1.72 in.
June46.7 °F72.5 °F2.41 in.
July51.8 °F83.8 °F0.99 in.
August50.6 °F83.6 °F0.88 in.
September43.4 °F72.4 °F1.11 in.
October34.3 °F56.8 °F1.32 in.
November26.8 °F42.1 °F1.18 in.
December21.4 °F33.9 °F1.01 in.
Annual34.9 °F57.3 °F14.66 in.

Climate Data for Charlo Montana

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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