Superior Montana Climate Data

Monthly Average Climate Data for Superior Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.2 °F35.0 °F2.4 in.
February22.0 °F39.8 °F1.95 in.
March26.9 °F49.4 °F1.89 in.
April32.5 °F58.5 °F1.64 in.
May39.3 °F68.5 °F1.9 in.
June45.7 °F75.7 °F2.2 in.
July50.2 °F86.7 °F0.91 in.
August49.2 °F86.4 °F0.92 in.
September41.6 °F75.4 °F1.17 in.
October33.7 °F58.7 °F2.14 in.
November26.7 °F42.2 °F2.44 in.
December21.1 °F33.7 °F2.6 in.
Annual34.2 °F59.2 °F22.16 in.

Climate Data for Superior 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 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year