Lamoni, IA Climate

Climate Insight: Lamoni, IA

Lamoni, Iowa runs an annual average of 51°F, ranging from a mean daily high of 61°F to a mean daily low of 41°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from 2 weather stations, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Lamoni averages an uncharted amount of precipitation a year, with seasonal snowfall possible, and that matters as much to daily life here as temperature does. The frost-free season averages 187 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 20. As for energy demand, 5,950 heating degree days and 967 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Lamoni scores 53/100 (Moderate), 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.