Thompson Falls Montana Climate Data

Monthly Average Climate Data for Thompson Falls Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.8 °F34.7 °F2.45 in.
February22.4 °F39.7 °F1.97 in.
March26.6 °F48.4 °F2.0 in.
April31.8 °F57.4 °F1.68 in.
May38.4 °F67.7 °F2.08 in.
June44.7 °F74.2 °F2.24 in.
July48.8 °F85.6 °F0.93 in.
August47.8 °F86.1 °F0.83 in.
September41.1 °F74.9 °F0.99 in.
October33.4 °F57.9 °F2.14 in.
November27.3 °F41.9 °F2.85 in.
December22.0 °F33.7 °F2.45 in.
Annual33.8 °F58.5 °F22.61 in.

Climate Data for Thompson Falls 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 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer