Hungry Horse Dam, MT Climate

Climate Insight: Hungry Horse Dam, MT

An annual average temperature of 44°F, ranging from a mean daily high of 54°F to a mean daily low of 35°F is what the NOAA 1991–2020 climate normals report for Hungry Horse Dam, Montana. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00244328 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Anyone planning to live, garden, or travel in Hungry Horse Dam should weigh precipitation alongside temperature: the annual average runs 34.6 inches, predominantly as rainfall. The frost-free season averages 145 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 9 and the first fall freeze near October 1. And on the energy front, 7,786 heating degree days and 293 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Hungry Horse Dam scores 54/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.