Big Timber Montana Climate Data

Monthly Average Climate Data for Big Timber Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.6 °F38.0 °F0.57 in.
February17.6 °F40.2 °F0.57 in.
March24.3 °F49.1 °F0.98 in.
April31.3 °F57.4 °F2.22 in.
May39.5 °F66.7 °F3.14 in.
June47.5 °F75.9 °F2.84 in.
July53.0 °F86.9 °F1.45 in.
August50.9 °F85.6 °F1.02 in.
September43.0 °F74.8 °F1.26 in.
October33.4 °F59.8 °F1.49 in.
November24.7 °F46.5 °F0.72 in.
December17.7 °F37.2 °F0.7 in.
Annual33.4 °F59.8 °F16.96 in.

Climate Data for Big Timber 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 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year