Worth County Climate
Worth County, Iowa
Avg Annual Temp
43.0°F
Annual Precip
35.5"
Annual Snowfall
40.2"
Extreme Heat Days
4.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Worth County Weather
A Cold Northern Climate Profile
Worth County's 43.0°F annual average is significantly lower than the national median. This northern location results in shorter summers and a much colder overall climate profile.
One of Iowa's Coldest Counties
Worth County ranks well below the state average, sitting 5 degrees cooler than the 48.0°F Iowa mean. Its 35.5 inches of precipitation closely matches the state's average of 36.1 inches.
Cooler Summers than Southern Neighbors
Worth County only sees 4 days of extreme heat annually, far fewer than counties in southern or western Iowa. It records 40.2 inches of snowfall, which is higher than many regional peers.
Dominant Winters and Mild Summers
Winter is intense here, with a January average of only 12.6°F. Summers remain mild and pleasant, featuring a July average of 69.0°F and very few days reaching 90°F.
Winter Preparedness is Top Priority
With over 40 inches of annual snow, high-quality winter gear and snow blowers are essential. Residents should prioritize home insulation for the frigid 16.3°F winter average.
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.