Heart of Winter: Kentucky’s Climatological Coldest Stretch

When looking at the averages, this is typically the chilliest time of the year for Kentucky.

What You Need To Know

  • Kentucky typically experiences its coldest days in mid-January
  • The hottest days occur in mid-July
  • The average temperatures are calculated from 1981 to 2010
  • We will begin warming quickly as we head toward March

Climatologically speaking, our coldest stretch of weather occurs in the second week of January, when our average temperature reaches its lowest point.

For Louisville, the average high temperature on January 12 is 43 degrees, with most other locations in Kentucky sitting in the low-to-mid 40s.

The good news is that we are not on the rise. Our average highs will not climb quickly at first, but as we move into March, the rate of warming will increase drastically.

Our hottest days typically occur in the middle of July, based on averages from 1981 to 2010.

Louisville hits an average high of 89 degrees around July 19. This may surprise some who think that number should be in the 90s. 

However, we have enough cooler days on average to balance that out to the upper 80s on an average year.

You may also notice that there is a lag between when we have our minimum and maximum temperatures relative to the Winter Solstice (December) and the Summer Solstice (June).

The atmosphere takes time to react to the changes in solar insolation, and thus our peaks occur later.

Get ready for milder temperatures. They’ll be here before you know it!