Frenchtown Montana Climate Data

Monthly Average Climate Data for Frenchtown Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.6 °F34.6 °F0.95 in.
February21.2 °F39.3 °F0.92 in.
March26.7 °F49.4 °F0.88 in.
April32.3 °F57.6 °F1.22 in.
May39.5 °F67.4 °F1.78 in.
June46.2 °F74.4 °F2.0 in.
July50.9 °F86.0 °F0.75 in.
August49.4 °F85.5 °F0.88 in.
September42.0 °F74.1 °F1.0 in.
October33.2 °F58.0 °F1.14 in.
November25.6 °F42.4 °F1.2 in.
December19.9 °F33.6 °F1.03 in.
Annual33.9 °F58.5 °F13.75 in.

Climate Data for Frenchtown Montana

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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