Union County Climate
Union County, Kentucky
Avg Annual Temp
54.8°F
Annual Precip
50.9"
Annual Snowfall
3.3"
Extreme Heat Days
30.9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
DryWet❄= snowfall
❄3.9"
❄3.7"
❄5.1"
5.1"
5.3"
4.6"
4.4"
3.2"
3.2"
❄3.6"
4.2"
❄4.4"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Seasonal Overview
National Comparison
Warmer than 52% of US counties
Wetter than 78% of US counties
More seasonal variation than 54% of US counties
Frequently Asked Questions
What is the average temperature in Union County?
The average annual temperature in Union County, KY is 54.8°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Union County get?
Union County receives an average of 50.9 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Union County?
Yes, Union County receives an average of 3.3 inches of snowfall per year according to NOAA climate normals.
How hot does Union County get in summer?
The average summer temperature (June-August) in Union County is 74.2°F. The county experiences an average of 30.9 days per year above 90°F.
How cold are winters in Union County?
The average winter temperature (December-February) in Union County is 34.4°F. January, typically the coldest month, averages 31.8°F.
Track your own weather in Union County
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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.