Jones County Climate
Jones County, Iowa
Avg Annual Temp
47.0°F
Annual Precip
40.1"
Annual Snowfall
—
Extreme Heat Days
12.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Jones County Weather
Cooler and Wetter than Median
Jones County averages 47.0°F annually, making it one of the cooler areas relative to the national median. It is a damp region, receiving a significant 40.1 inches of annual precipitation.
Iowa's Rainier Northeast Corner
The county is cooler than the 48.0°F Iowa average and much wetter than the state's 36.1-inch rainfall norm. It stands out for having 40.1 inches of precipitation annually.
A Cooler Regional Neighbor
Jones is more than one degree cooler on average than Jackson County to its east. While snowfall data is limited, its high precipitation suggests a very active winter weather pattern.
Mild Summers and Crisp Winters
Summer averages are a comfortable 70.4°F with only 13 days of extreme heat over 90°F. Winters are sharp, with the temperature averaging 21.4°F from December through February.
Manage Moisture and Winter Cold
Because the county receives 40 inches of precipitation, basement waterproofing and roof maintenance are vital. The low heat-day count means summer cooling costs may be lower than neighbors.
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.