Historical Weather in Iowa
See 55+ years of weather history for any date in Iowa going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Des Moines, IA, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 86°F / Low: 66°F
Coldest MonthJanuaryAvg High: 30°F / Low: 12°F
Jan
30°/ 12°
💧 0.1"
❄️ 1.4"
Feb
35°/ 16°
💧 0.2"
❄️ 1.6"
Mar
48°/ 28°
💧 0.3"
❄️ 1.5"
Apr
62°/ 40°
💧 0.3"
❄️ 1.7"
May
73°/ 51°
💧 0.4"
❄️ 2.0"
Jun
82°/ 61°
💧 0.5"
❄️ 0.1"
Jul
86°/ 66°
💧 0.4"
Aug
84°/ 63°
💧 0.5"
Sep
77°/ 54°
💧 0.4"
Oct
64°/ 42°
💧 0.3"
❄️ 1.7"
Nov
48°/ 29°
💧 0.3"
❄️ 1.5"
Dec
34°/ 17°
💧 0.2"
❄️ 1.4"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Climate data based on Des Moines, the largest city in Iowa.
Iowa All-Time Temperature RecordsSee the hottest and coldest days ever recorded since 1970
→Iowa All-Time Weather ExtremesRain, snow, and temperature extremes for any Iowa city or ZIP code
→Major Cities in Iowa
Today's Weather History in Iowa
See how today compares to 55+ years of weather data for Iowa cities.