Greene County Climate
Greene County, Iowa
Avg Annual Temp
47.8°F
Annual Precip
35.3"
Annual Snowfall
31.7"
Extreme Heat Days
18.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Greene County Weather
Classic interior continental weather
Greene County averages 47.8°F annually, falling below the national temperature median. It receives 35.3 inches of precipitation, making it a standard representation of the Midwestern climate.
Typical Iowa temperature and rainfall
The county's 47.8°F average temperature is very close to the state average of 48.0°F. Its 35.3 inches of annual precipitation also tracks closely with the state average of 36.1 inches.
Warmer than its northern neighbors
Greene County is warmer than Hamilton County, which averages just 46.1°F. It also records 31.7 inches of snow, slightly more than Franklin County's 30.0 inches.
Hot summers with snowy stretches
Summer heat is common here, with an average of 19 days hitting at least 90°F. Winters are cold, averaging 18.4°F in January with 31.7 inches of annual snowfall.
Prepare for summer heat waves
With nearly three weeks of 90-degree weather, cooling capacity is a priority for local homes. Winter planning should account for a 21.8°F seasonal average and steady snowfall.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.