Basin Montana Climate Data

Monthly Average Climate Data for Basin Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.0 °F33.2 °F0.89 in.
February12.1 °F35.9 °F0.72 in.
March19.1 °F43.7 °F0.99 in.
April25.3 °F50.7 °F1.27 in.
May32.8 °F60.0 °F1.85 in.
June39.4 °F68.4 °F2.67 in.
July44.8 °F79.7 °F1.63 in.
August43.0 °F79.0 °F1.42 in.
September35.9 °F68.3 °F1.07 in.
October26.7 °F54.1 °F0.9 in.
November16.9 °F40.7 °F0.83 in.
December9.3 °F31.9 °F0.93 in.
Annual26.3 °F53.8 °F15.17 in.

Climate Data for Basin Montana

Average First Frost DateAug. 21 - Aug. 31
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsExtreme Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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