Thompson Falls PH, MT Climate

Climate Insight: Thompson Falls PH, MT

The NOAA 1991–2020 climate normals describe Thompson Falls PH, Montana as a location with an annual average temperature of 48°F, ranging from a mean daily high of 59°F to a mean daily low of 37°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00248211, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Thompson Falls PH sees about 22.1 inches of precipitation a year, with 15.3 inches typically falling as snow. The frost-free season averages 150 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 7 and the first fall freeze near October 4. On the energy side, 6,671 heating degree days and 391 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Thompson Falls PH scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.