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, marked by an average high-temperature of 38.8°F (3.8°C) and a low-temperature of 25.9°F (-3.4°C), is the coldest month.Humidity
In Louisville, the average relative humidity in January is 78%.Rainfall
The months with the least rainfall are January and September Rain falls for 9 days and accumulates 1.06" (27mm) of rain.Snowfall
January through April, November and December are months with snowfall. In Louisville, in January, snow falls for 7.3 days, with typically accumulated 0.98" (25mm) of snow. In Louisville, during the entire year, snow falls for 25 days and aggregates up to 3.7" (94mm) of snow.Daylight
The average length of the day in January is 9h and 52min.On the first day of the month, sunrise is at 7:59 am and sunset at 5:33 pm. On the last day of January, sunrise is at 7:48 am and sunset at 6:03 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 4.4h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Louisville?
How cold is it in Louisville in January?
What is the average humidity in January in Louisville?
What is the driest month in Louisville?
How many days does it rain in January in Louisville?
How much does it snow in Louisville in January?
What is the average length of the day in January in Louisville?
What time are sunrise and sunset in January in Louisville?
What are the months with the least sunshine in Louisville?
How long on average sun shines in January in Louisville?
What are the months with the lowest UV index in Louisville?
What is the UV index intensity in January in Louisville?
Average temperature in January
Louisville, KY
- Average high temperature in January: 38.8°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in January: 25.9°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 (25.9°F).
Average pressure in January
Louisville, KY
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Louisville, KY
- Average wind speed in January: 7.8mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in January
Louisville, KY
- Average humidity in January: 78%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall in January
Louisville, KY
- Average rainfall in January: 1.06"
The wettest months (with the highest rainfall) are May and July (1.89").
The driest months (with the least rainfall) are January and September (1.06").
Average rainfall days in January
Louisville, KY
- Average rainfall days in January: 9 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in January
Louisville, KY
- Average snowfall in January: 0.98"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Louisville, KY
- Average snowfall days in January: 7.3 days
The month with the highest number of snowfall days is January (7.3 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, KY
- 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 36min).
- Average sunshine in January: 4h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in January
Louisville, KY
- Average sunshine days in January: 16.3 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in January
Louisville, KY
- 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, KY
- Average cloud cover in January: 56
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Louisville, KY
- Average visibility in January: 5mi
The months with the highest visibility are March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and May (5mi).
Louisville, Kentucky, USA
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