Carrollton, MO Climate

Climate Insight: Carrollton, MO

In Carrollton, Missouri, the NOAA 1991–2020 climate normals put the annual average temperature at 54°F, ranging from a mean daily high of 65°F to a mean daily low of 43°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00231340, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Carrollton averages 40.1 inches of precipitation a year, with 12.7 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 190 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 16 and the first fall freeze near October 23. As for energy demand, 5,336 heating degree days and 1,254 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Carrollton scores 68/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.