Tetonia Exp Stn, ID Climate

Climate Insight: Tetonia Exp Stn, ID

In Tetonia Exp Stn, Idaho, the NOAA 1991–2020 climate normals put the annual average temperature at 39°F, ranging from a mean daily high of 52°F to a mean daily low of 27°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00109065, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Tetonia Exp Stn receives roughly 19.0 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 84 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 15 and the first fall freeze near September 7. For energy use, 9,383 heating degree days and 66 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Tetonia Exp Stn 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.