Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
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.Humidity
In Louisville, the average relative humidity in January is 77%.Rainfall
In January, in Louisville, the rain falls for 9.3 days. Throughout January, 2.44" (62mm) of precipitation is accumulated. In Louisville, during the entire year, the rain falls for 167.3 days and collects up to 37.17" (944mm) of precipitation.Snowfall
Months with snowfall in Louisville are January through April, October through December. January is the month with the most snowfall. Snow falls for 7.1 days and accumulates 2.05" (52mm) of snow.Daylight
In Louisville, the average length of the day in January is 9h and 49min.On the first day of the month, sunrise is at 7:12 am and sunset at 4:42 pm. On the last day of January, in Louisville, sunrise is at 7:00 am and sunset at 5:13 pm CST.
Sunshine
With an average of 4.4h of sunshine, January has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Louisville. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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?
How cold is January in Louisville?
What is the average humidity in January in Louisville?
How much does it rain in Louisville in January?
What is the snowiest month in Louisville?
How many days does it snow in January in Louisville?
How many hours of daylight does Louisville have in January?
When are sunrise and sunset in January in Louisville?
What is the month with the least sunshine in Louisville?
How many hours of sunshine does Louisville have in January?
What are the months with the lowest UV index in Louisville?
How high is the UV index in January in Louisville?
Average temperature in January
Louisville, IL
- Average high temperature in January: 36.7°F
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).
- Average low temperature in January: 24.3°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 in January
Louisville, IL
- Average pressure in January: 30.16"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 in January
Louisville, IL
- Average wind speed in January: 10.3mph
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 in January
Louisville, IL
- Average humidity in January: 77%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Louisville, IL
- Average rainfall in January: 2.44"
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 in January
Louisville, IL
- Average rainfall days in January: 9.3 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 in January
Louisville, IL
- Average snowfall in January: 2.05"
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 in January
Louisville, IL
- Average snowfall days in January: 7.1 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 in January /
Average sunshine in January
Louisville, IL
- Average daylight in January: 9h and 5min
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
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 in January
Louisville, IL
- Average sunshine days in January: 15.3 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 in January
Louisville, IL
- Average UV index in January: 2
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 in January
Louisville, IL
- Average cloud cover in January: 52
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 in January
Louisville, IL
- Average visibility in January: 6mi
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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