January weather forecastHomer Glen, IL
January
Weather in January
January, like December, is another subzero cold winter month in Homer Glen, Illinois, with an average temperature fluctuating between 17.6°F (-8°C) and 29.1°F (-1.6°C).Temperature
Temperature records mark January as the coldest month, with highs averaging 29.1°F (-1.6°C) and lows at 17.6°F (-8°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 83%.Rainfall
In Homer Glen, during January, the rain falls for 4 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Homer Glen, there are 103.8 rainfall days, and 10.08" (256mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 9 days and typically aggregates up to 1.14" (29mm) of snow.Daylight
In Homer Glen, the average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:05 pm CST.
Sunshine
With an average of 3.7h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the maximum UV index of 1 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Homer Glen, IL
- Average high temperature in January: 29.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in January: 17.6°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in January
Homer Glen, 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
Homer Glen, 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
Homer Glen, IL
- Average humidity in January: 83%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
Homer Glen, IL
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in January
Homer Glen, IL
- Average rainfall days in January: 4 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in January
Homer Glen, IL
- Average snowfall in January: 1.14"
The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Homer Glen, IL
- Average snowfall days in January: 9 days
The month with the highest number of snowfall days is January (9 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
Homer Glen, 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 42min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Homer Glen, IL
- Average sunshine days in January: 21.1 days
The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in January
Homer Glen, 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
Homer Glen, IL
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Homer Glen, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
