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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Louisville, Illinois, is a wintry winter month, with an average temperature ranging between max 36.7°F (2.6°C) and min 24.3°F (-4.3°C). January is the coldest month, exhibiting average temperatures of 36.7°F (2.6°C) at the peak and 24.3°F (-4.3°C) at the base. Weather in January »
Weather in February
February, the last month of the winter in Louisville, is also an icy month, with an average temperature ranging between max 41.7°F (5.4°C) and min 28.2°F (-2.1°C). Louisville's February showcases an average high-temperature of a still wintry 41.7°F (5.4°C), hardly distinct from January's 36.7°F (2.6°C). Weather in February »
Weather in March
March, the first month of the spring in Louisville, is a cool month, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 37.8°F (3.2°C). As Louisville transitions into March, a rise in the average high-temperature is observed, moving from a wintry 41.7°F (5.4°C) in February to a cool 53.2°F (11.8°C). Weather in March »
Weather in April
April is an enjoyable spring month in Louisville, Illinois, with an average temperature fluctuating between 47.5°F (8.6°C) and 64.4°F (18°C). April's onset brings a temperature rise, moving from a fresh 53.2°F (11.8°C) in March to an enjoyable 64.4°F (18°C). Weather in April »
Weather in May
May, the last month of the spring in Louisville, is a moderately hot month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 57.9°F (14.4°C). May's arrival coincides with a rise in the average high-temperature, moving from April's refreshing 64.4°F (18°C) to a moderately hot 73.9°F (23.3°C). Weather in May »
Weather in June
June, the first month of the summer in Louisville, is also a moderately hot month, with an average temperature ranging between min 66°F (18.9°C) and max 83.1°F (28.4°C). The shift from May to June sees an increase in the average high-temperature, transitioning from a warm 73.9°F (23.3°C) to a still moderately hot 83.1°F (28.4°C). Weather in June »
Weather in July
July, like June, in Louisville, Illinois, is another warm summer month, with temperature in the range of an average low of 67.5°F (19.7°C) and an average high of 84.7°F (29.3°C). July, with an average high of 84.7°F (29.3°C) and a low of 67.5°F (19.7°C), signifies the warmest month of the year. July's average heat index is appraised at a very hot 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in Louisville, is another warm month, with an average temperature fluctuating between 82.9°F (28.3°C) and 65.7°F (18.7°C). The average high-temperature for August is a still warm 82.9°F (28.3°C), closely aligning with the temperature of the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Louisville, is still a warm month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 59.9°F (15.5°C). Welcoming September, Louisville notes an average high-temperature of a still warm 78.6°F (25.9°C), nearly consistent with August's 82.9°F (28.3°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Louisville, Illinois, with an average temperature fluctuating between 65.8°F (18.8°C) and 49.1°F (9.5°C). Onset of October witnesses a reduction in the average high-temperature, falling from a moderately hot 78.6°F (25.9°C) in September to a refreshing 65.8°F (18.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Louisville, is also a fresh month, with temperature in the range of an average high of 52°F (11.1°C) and an average low of 37.9°F (3.3°C). The transition into November involves a decrease in the average high-temperature, falling from a comfortable 65.8°F (18.8°C) in October to a cool 52°F (11.1°C). Weather in November »
Weather in December
December, the first month of the winter in Louisville, is also a wintry month, with an average temperature varying between 41.9°F (5.5°C) and 30.4°F (-0.9°C). The move into December indicates a reduction in the average high-temperature, down from November's fresh 52°F (11.1°C) to a wintry 41.9°F (5.5°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Louisville?
With average high and low temperatures of 36.7°F (2.6°C) and 24.3°F (-4.3°C) respectively, January is Louisville's coldest month.
How many days does it rain in Louisville?
Throughout the year, in Louisville, Illinois, there are 167.3 rainfall days, and 37.17" (944mm) of precipitation is accumulated.
When does it snow in Louisville?
Months with snowfall are January through April, October through December.
What is the snowiest month in Louisville?
January is the month with the most snowfall in Louisville. Snow falls for 7.1 days and accumulates 2.05" (52mm) of snow.
How many days does it snow in Louisville?
Throughout the year, there are 22.8 snowfall days, and 7.09" (180mm) of snow is accumulated.
What is the month with the least sunshine in Louisville?
The month with the least sunshine in Louisville, Illinois, is January, with an average of 4.4h of sunshine.
What are the months with the lowest UV index in Louisville?
The months with the lowest UV index in Louisville, Illinois, are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Louisville?
February and September are months with the least rain in Louisville when the rain falls for 9.7 days and typically aggregates up to 2.09" (53mm) of rain.
When is Daylight Saving Time (DST) in Louisville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Louisville, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month in Louisville?
The month with the most rainfall is April, when the rain falls for 15.7 days and typically aggregates up to 4.88" (124mm) of precipitation.
What is the most humid month in Louisville?
May and July, with an average relative humidity of 80%, are most humid months in Louisville, Illinois.
When it does not snow in Louisville?
May through September are months without snowfall in Louisville.
What is the month with the highest UV index in Louisville?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Louisville?
The month with the longest days in Louisville is June, with an average of 14h and 48min of daylight.
What month has the most sunshine in Louisville?
June has the most sunshine of the year in Louisville, Illinois, with an average of 10.5h of sunshine.
What are the warmest months in Louisville?
With average high temperatures of 84.7°F (29.3°C) and lows of 67.5°F (19.7°C), July is the warmest month in Louisville.
What is the least humid month in Louisville?
The least humid month is October, with an average relative humidity of 70%.
What is the month with the shortest days in Louisville?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Louisville, Illinois.
Average temperature
Louisville, IL
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Louisville, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Louisville, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
Louisville, IL
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Louisville, IL
- Average rainfall in January:
2.44" - Average rainfall in February:
2.09" - Average rainfall in March:
3.15" - Average rainfall in April:
4.88" - Average rainfall in May:
4.21" - Average rainfall in June:
3.9"
- Average rainfall in July:
3.39" - Average rainfall in August:
2.91" - Average rainfall in September:
2.09" - Average rainfall in October:
2.99" - Average rainfall in November:
2.52" - Average rainfall in December:
2.6"
The wettest month (with the highest rainfall) is April (4.88").
The driest months (with the least rainfall) are February and September (2.09").
Average rainfall days
Louisville, IL
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
15.5 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
19.9 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
18.2 days - Average rainfall days in August:
15.4 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (9.3 days).
Average snowfall
Louisville, IL
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Louisville, IL
- Average snowfall days in January:
7.1 days - Average snowfall days in February:
6 days - Average snowfall days in March:
2.5 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Louisville, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Louisville, IL
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
12 days - Average sunshine days in May:
9 days - Average sunshine days in June:
9.1 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
16.9 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9 days).
Average UV index
Louisville, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Louisville, IL
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility
Louisville, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Louisville, Illinois, USA
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