Louisville KY Average Temperatures 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

Louisville Temperatures: Averages by Month

Days of Hot Weather in Louisville

How Often Louisville Has Cold Temperatures

References

More on Weather in Kentucky