Caledonia, MN Climate

Climate Insight: Caledonia, MN

An annual average temperature of 46°F, ranging from a mean daily high of 55°F to a mean daily low of 36°F is what the NOAA 1991–2020 climate normals report for Caledonia, Minnesota. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00211198 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Caledonia sees about 38.3 inches of precipitation a year, with 44.8 inches typically falling as snow. The frost-free season averages 164 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 29 and the first fall freeze near October 10. On the energy side, 7,641 heating degree days and 587 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Caledonia scores 59/100 (Moderate), 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 January-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.