Allen County Climate
Allen County, Kentucky
Avg Annual Temp
57.0°F
Annual Precip
54.0"
Annual Snowfall
7.6"
Extreme Heat Days
27.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Allen County Weather
Warmer and Wetter Than the Median
Allen County is warmer than much of the U.S., featuring a 57.0°F average annual temperature. Its 54.0 inches of annual precipitation significantly exceeds the national median, creating a damp, verdant environment.
Outpacing the Kentucky State Averages
With an average of 57.0°F, Allen County is warmer than the state average of 56.2°F. It also receives nearly four extra inches of rain compared to the 50.6-inch statewide baseline.
Slightly Warmer Than Northern Neighbors
Allen’s 54.0 inches of rain makes it wetter than its northern neighbor, Barren County. While both counties share a warm profile, Allen averages a slightly cooler winter at 38.0°F compared to Barren’s 39.1°F.
Milder Winters and Humid Summers
Summers are humid with 27 days reaching 90°F or higher and a July average of 76.2°F. Winter brings a modest 7.6 inches of snow and a relatively mild 38.0°F seasonal average.
Managing Humidity and Summer Heat
High humidity and 27 extreme heat days annually require efficient HVAC systems to maintain indoor comfort. The 54.0 inches of rain also means high-quality rain gear and reliable drainage systems are local necessities.
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.