January weather forecastLake Summerset, IL
January
Weather in January
January, the same as December, in Lake Summerset, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 24.8°F (-4°C).Temperature
In Lake Summerset, the lowest average temperatures are observed in January, with a high of 24.8°F (-4°C) and a low of 12.7°F (-10.7°C).Humidity
January is the most humid month in Lake Summerset, with an average relative humidity of 88%.Rainfall
January is the month with the least rainfall. Rain falls for 2.4 days and accumulates 0.31" (8mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 1.22" (31mm) of snow.Daylight
In Lake Summerset, the average length of the day in January is 9h and 29min.On the first day of January, sunrise is at 7:26 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:09 pm CST.
Sunshine
The months with the least sunshine are January and February, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In January, an average UV index of 1 transforms into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be alert to the fact! The reflection from snow can nearly 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
Lake Summerset, IL
- Average high temperature in January: 24.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in January: 12.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in January
Lake Summerset, IL
- Average pressure in January: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Lake Summerset, IL
- Average wind speed in January: 9.8mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
Lake Summerset, IL
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in January
Lake Summerset, IL
- Average rainfall in January: 0.31"
The wettest month (with the highest rainfall) is June (0.98").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in January
Lake Summerset, IL
- Average rainfall days in January: 2.4 days
The month with the highest number of rainy days is May (12.8 days).
The months with the least rainy days are January and February (2.4 days).
Average snowfall in January
Lake Summerset, IL
- Average snowfall in January: 1.22"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Lake Summerset, IL
- Average snowfall days in January: 9.3 days
The month with the highest number of snowfall days is January (9.3 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
Lake Summerset, IL
- Average daylight in January: 9h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 3h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in January
Lake Summerset, IL
- Average sunshine days in January: 22.5 days
The months with the most sunshine days are November and December (22.9 days).
The month with the least sunshine days is June (13.4 days).
Average UV index in January
Lake Summerset, IL
- Average UV index in January: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Lake Summerset, IL
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in January
Lake Summerset, IL
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).





