Ennis Montana Climate Data

Monthly Average Climate Data for Ennis Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.9 °F35.2 °F0.46 in.
February16.2 °F37.8 °F0.52 in.
March22.9 °F46.6 °F0.84 in.
April28.8 °F54.5 °F1.49 in.
May36.3 °F63.9 °F2.02 in.
June42.7 °F72.8 °F2.32 in.
July48.1 °F83.8 °F1.23 in.
August46.4 °F82.9 °F1.0 in.
September39.6 °F72.7 °F1.01 in.
October30.8 °F58.2 °F1.21 in.
November22.4 °F43.7 °F0.68 in.
December15.0 °F34.5 °F0.54 in.
Annual30.4 °F57.2 °F13.32 in.

Climate Data for Ennis Montana

Average First Frost DateSep.1 - Sep. 10
Average Last Frost DateJun. 21 - Jun. 30
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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