Idaho Falls Fanning Fld, ID Climate

Climate Insight: Idaho Falls Fanning Fld, ID

An annual average temperature of 44°F, ranging from a mean daily high of 58°F to a mean daily low of 31°F is what the NOAA 1991–2020 climate normals report for Idaho Falls Fanning Fld, Idaho. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USW00024145 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Idaho Falls Fanning Fld receives roughly 10.1 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 120 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 23 and the first fall freeze near September 20. For energy use, 7,792 heating degree days and 249 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Idaho Falls Fanning Fld scores 44/100 (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.