Louisville Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Louisville, Kentucky during each month of the year.

The average high and low temperatures are listed below monthly and annually for Louisville, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F each month in the city, scroll down farther. There are also monthly and yearly counts of days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Louisville, 2010 to 2019
High °F Low °F   High °C Low °C
43 26 January 6 -3
48 30 February 9 -1
58 39 March 15 4
71 49 April 22 10
79 61 May 26 16
87 68 June 30 20
90 71 July 32 22
88 70 August 31 21
83 63 September 29 17
71 51 October 22 10
57 38 November 14 3
49 33 December 9 1
69 50 Year 20 10
30-year temperature averages for Louisville, 1991 to 2020
High °F Low °F   High °C Low °C
44 28 January 6 -2
48 31 February 9 -1
58 39 March 15 4
70 49 April 21 9
78 59 May 25 15
86 67 June 30 20
89 71 July 32 22
88 70 August 31 21
82 62 September 28 17
71 50 October 21 10
58 39 November 14 4
47 32 December 8 0
68 50 Year 20 10

Days of Hot Weather in Louisville

Temperatures into the 90s Fahrenheit can descend on Louisville anytime from May to October.

The city averages just one day in a summer when the daytime high reaches into the 100s (over 37 °C).

Days per month in Louisville of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 0 0 0
February 1 0 0
March 6 1 0
April 16 5 0
May 25 15 1
June 29 25 9
July 31 30 14
August 31 29 13
September 28 19 6
October 16 6 0
November 4 0 0
December 1 0 0
Year 189 129 43

How Often Louisville Has Cold Temperatures

Louisville usually has nights with freezing temperatures dispersed from October to March. Normally four nights a year get as cold as 10 degrees F or below.

In winter, from December to February, Louisville has an occasional day that never warms up to above 32 °F. Although rare, the cold daytime weather can even spill over into March or November. The city on average sees 13 days a year that remain below freezing.

Days per month on average in Louisville when the minimum temperature drops to 10, 20, or 32 °F or below
  10 °F
-12 °C
20 °F
-8 °C
32 °F
0 °C
January 3 8 21
February 1 5 17
March 0 1 10
April 0 0 1
May 0 0 0
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 1
November 0 1 8
December 1 4 17
Year 4 19 74
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Kentucky Temperatures
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