Guthrie County Climate
Guthrie County, Iowa
Avg Annual Temp
48.4°F
Annual Precip
37.1"
Annual Snowfall
—
Extreme Heat Days
20.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Guthrie County Weather
A moderate Midwestern temperature profile
Guthrie County’s 48.4°F annual average is slightly warmer than many of its northern peers but remains below the national median. It receives a healthy 37.1 inches of annual precipitation.
Typical Iowa warmth and rain
Guthrie County is slightly warmer than the state average of 48.0°F. Its 37.1 inches of annual precipitation also exceeds the Iowa state average of 36.1 inches.
Milder than the northern tier
The county is significantly warmer than Hamilton County, which sits at 46.1°F. It experiences 21 days of extreme heat, similar to its neighbor Greene County's 19 days.
Warm summers and cold Januaries
July averages 74.1°F, and the county sees 21 days of extreme heat above 90°F. While specific snowfall data is limited, the January average of 19.6°F indicates cold, snowy winters.
Focus on summer cooling needs
High summer temperatures require reliable air conditioning, especially during the 21 days of extreme heat. Homeowners should also prepare for winter lows that average 23.0°F across the season.
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.