Primghar, IA Climate

Climate Insight: Primghar, IA

The NOAA 1991–2020 climate normals describe Primghar, Iowa as a location with an annual average temperature of 48°F, ranging from a mean daily high of 58°F to a mean daily low of 38°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00136800, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Primghar averages 31.4 inches of precipitation a year, with 34.8 inches typically falling as snow, and that matters as much to daily life here as temperature does. 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. As for energy demand, 6,989 heating degree days and 892 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Primghar scores 59/100 (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.