Missoula Montana Climate Data

Monthly Average Climate Data for Missoula Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.6 °F33.9 °F1.08 in.
February20.6 °F38.6 °F0.92 in.
March26.3 °F48.8 °F0.99 in.
April32.2 °F56.7 °F1.36 in.
May39.3 °F66.3 °F1.97 in.
June45.9 °F73.2 °F2.59 in.
July50.8 °F85.1 °F0.97 in.
August49.4 °F84.6 °F1.03 in.
September42.0 °F73.3 °F1.19 in.
October33.0 °F57.4 °F1.2 in.
November25.0 °F41.8 °F1.24 in.
December18.7 °F33.0 °F1.21 in.
Annual33.5 °F57.7 °F15.75 in.

Climate Data for Missoula Montana

Average First Frost DateOct.11 - Oct. 20
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 180 Days
Plant Hardiness ZoneZone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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