Midland, SD Climate

Climate Insight: Midland, SD

An annual average temperature of 48°F, ranging from a mean daily high of 62°F to a mean daily low of 34°F is what the NOAA 1991–2020 climate normals report for Midland, South Dakota. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00395506 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. Midland receives roughly an uncharted amount of precipitation each year, predominantly as rainfall. The frost-free season averages 139 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 12 and the first fall freeze near September 28. For energy use, 7,149 heating degree days and 825 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Midland scores 49/100 (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.