Allen County Climate
Allen County, Indiana
Avg Annual Temp
50.3°F
Annual Precip
38.5"
Annual Snowfall
33.6"
Extreme Heat Days
16.75
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Allen County Weather
Cooler and Drier Than the National Median
Allen County averages 50.3°F annually, marking it as a cooler-than-median region within the humid continental climate zone. This temperature profile reflects the typical seasonal variance seen across the upper Midwest.
One of Indiana’s Cooler Regions
The county is one of the cooler spots in Indiana, sitting nearly two degrees below the state average of 52.2°F. It receives 38.5 inches of precipitation, which is well below the statewide average of 43.9 inches.
Drier Conditions Than Southern Neighbors
Compared to neighboring Adams County, Allen is slightly cooler and significantly drier. While Adams sees 41.2 inches of rain and snow, Allen manages only 38.5 inches annually.
Heavy Snow and Frequent Winter Freezes
Summer brings 17 days over 90°F, while winters are heavy with 33.6 inches of annual snowfall. July peaks at 73.5°F, contrasting sharply with a cold January average of 25.1°F.
Winterize for Significant Snow Totals
With over 33 inches of snow, residents need heavy-duty winter gear and winterized vehicles. The 17 days of extreme heat also necessitate efficient cooling systems for the summer months.
Frequently Asked Questions
What is the average temperature in Allen County?
How much rain does Allen County get?
Does it snow in Allen County?
How hot does Allen County get in summer?
How cold are winters in Allen County?
Track your own weather in Allen County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.