Sedan Montana Climate Data

Monthly Average Climate Data for Sedan Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.6 °F34.5 °F1.33 in.
February14.2 °F35.7 °F1.28 in.
March20.5 °F43.4 °F1.52 in.
April26.0 °F51.4 °F2.74 in.
May33.4 °F60.1 °F3.17 in.
June40.2 °F69.0 °F3.54 in.
July45.0 °F80.0 °F1.66 in.
August43.5 °F79.6 °F1.49 in.
September37.5 °F69.1 °F1.76 in.
October29.2 °F54.4 °F1.89 in.
November20.3 °F41.7 °F1.6 in.
December13.6 °F32.9 °F1.52 in.
Annual28.1 °F54.3 °F23.5 in.

Climate Data for Sedan 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 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year