January weather forecastNew Lenox, IL
January
Weather in January
January, the same as December, in New Lenox, Illinois, is a freezing cold winter month, with an average temperature varying between 29.3°F (-1.5°C) and 17.4°F (-8.1°C).Temperature
The coldest month is January, with an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 17.4°F (-8.1°C).Humidity
In New Lenox, Illinois, the average relative humidity in January is 82%.Rainfall
In New Lenox, in January, during 5.9 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 149.8 rainfall days, and 31.26" (794mm) of precipitation is accumulated.Snowfall
Months with snowfall in New Lenox are January through April, October through December. January is the month with the most snowfall. Snow falls for 12.3 days and accumulates 4.53" (115mm) of snow.Daylight
In January, the average length of the day in New Lenox is 9h and 35min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:32 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:05 pm CST.
Sunshine
January has the least sunshine of the year in New Lenox, with an average of 3.6h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 1 in January translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
New Lenox, IL
- Average high temperature in January: 29.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in January: 17.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in January
New Lenox, IL
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
New Lenox, IL
- Average wind speed in January: 9.7mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
New Lenox, IL
- Average humidity in January: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
New Lenox, IL
- Average rainfall in January: 1.77"
The wettest month (with the highest rainfall) is May (4.21").
The driest months (with the least rainfall) are February and December (1.61").
Average rainfall days in January
New Lenox, IL
- Average rainfall days in January: 5.9 days
The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in January
New Lenox, IL
- Average snowfall in January: 4.53"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
New Lenox, IL
- Average snowfall days in January: 12.3 days
The month with the highest number of snowfall days is January (12.3 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
New Lenox, IL
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in January
New Lenox, IL
- Average sunshine days in January: 14.1 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in January
New Lenox, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
New Lenox, IL
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
New Lenox, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).





