Pompeys Pillar Montana Climate Data

Monthly Average Climate Data for Pompeys Pillar Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.5 °F36.0 °F0.48 in.
February15.3 °F40.3 °F0.51 in.
March23.6 °F51.0 °F0.85 in.
April32.7 °F60.3 °F1.71 in.
May42.3 °F69.8 °F2.44 in.
June51.1 °F79.4 °F2.32 in.
July56.8 °F89.0 °F1.42 in.
August54.4 °F88.1 °F0.95 in.
September45.0 °F77.3 °F1.41 in.
October33.2 °F62.1 °F1.43 in.
November22.6 °F47.9 °F0.62 in.
December14.1 °F37.5 °F0.5 in.
Annual33.6 °F61.6 °F14.64 in.

Climate Data for Pompeys Pillar Montana

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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