Montgomery County Climate
Montgomery County, Iowa
Avg Annual Temp
50.8°F
Annual Precip
37.2"
Annual Snowfall
27.4"
Extreme Heat Days
26.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Montgomery County Weather
A Warmer Midwestern Pocket
Montgomery County averages 50.8°F annually, which is several degrees below the national median but warm for its latitude. It receives 37.2 inches of annual precipitation.
High Temperature Rank
This county is one of the warmest in Iowa, exceeding the state average of 48.0°F by 2.8 degrees. It typically experiences less severe winter cold than northern counties.
Matching the Neighbors
The climate here is nearly identical to Mills County but stays significantly warmer than Osceola. It receives more precipitation than western neighbor Monona.
Hot Summers, Moderate Snow
The county endures 26 days of extreme heat over 90°F each year. Winter brings 27.4 inches of snow and an average temperature of 25.8°F.
Prepare for the Heat
Plan for nearly a full month of extreme summer heat with high-capacity cooling systems. Snow shoveling is a regular but manageable task given the 27.4-inch annual 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.