Grass Range Montana Climate Data

Monthly Average Climate Data for Grass Range Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.5 °F35.4 °F0.55 in.
February15.0 °F37.4 °F0.5 in.
March22.6 °F46.4 °F0.86 in.
April30.5 °F55.8 °F1.71 in.
May39.7 °F64.9 °F3.31 in.
June47.9 °F73.5 °F3.27 in.
July54.1 °F83.6 °F1.81 in.
August52.5 °F83.3 °F1.46 in.
September43.6 °F72.7 °F1.43 in.
October33.2 °F58.8 °F1.14 in.
November22.5 °F45.6 °F0.73 in.
December14.7 °F36.3 °F0.6 in.
Annual32.5 °F57.8 °F17.37 in.

Climate Data for Grass Range Montana

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate