January weather forecastColona, IL
January
Weather in January
January, the same as December, in Colona, Illinois, is another subzero cold winter month, with an average temperature varying between 15.4°F (-9.2°C) and 28.2°F (-2.1°C).Temperature
The coldest period tends to be January, when average temperatures fluctuate between a high of 28.2°F (-2.1°C) and a low of 15.4°F (-9.2°C).Humidity
January and July, with an average relative humidity of 83%, are the most humid months.Rainfall
In Colona, during January, the rain falls for 3.2 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 99.4 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, September through December. January is the month with the most snowfall in Colona, Illinois. Snow falls for 7.2 days and accumulates 1.26" (32mm) of snow.Daylight
The average length of the day in January is 9h and 35min.On the first day of the month, sunrise is at 7:27 am and sunset at 4:42 pm. On the last day of January, in Colona, sunrise is at 7:14 am and sunset at 5:15 pm CST.
Sunshine
With an average of 3.9h of sunshine, January has the least sunshine of the year.UV index
The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 1 suggests this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Colona, IL
- Average high temperature in January: 28.2°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 (28.2°F).
- Average low temperature in January: 15.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in January
Colona, IL
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Colona, IL
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in January
Colona, IL
- Average humidity in January: 83%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Colona, IL
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in January
Colona, IL
- Average rainfall days in January: 3.2 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in January
Colona, IL
- Average snowfall in January: 1.26"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in January
Colona, IL
- Average snowfall days in January: 7.2 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Colona, 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Colona, IL
- Average sunshine days in January: 22.2 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in January
Colona, IL
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Colona, IL
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Colona, 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).





