Lewistown Heights Montana Climate Data

Monthly Average Climate Data for Lewistown Heights Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.9 °F34.5 °F0.59 in.
February14.3 °F35.5 °F0.58 in.
March21.6 °F44.3 °F0.77 in.
April29.8 °F53.0 °F1.69 in.
May38.3 °F62.2 °F2.33 in.
June46.5 °F72.4 °F3.31 in.
July52.0 °F81.1 °F1.72 in.
August50.7 °F81.1 °F1.48 in.
September42.2 °F70.6 °F1.29 in.
October31.8 °F56.5 °F1.14 in.
November22.0 °F43.9 °F0.66 in.
December14.6 °F35.2 °F0.54 in.
Annual31.5 °F55.9 °F16.1 in.

Climate Data for Lewistown Heights Montana

Average First Frost DateSep. 21 - Sep. 30
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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