January weather forecastSunny Hill, IL
January
Weather in January
January, like December, is a freezing cold winter month in Sunny Hill, Illinois, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 28.4°F (-2°C).Temperature
With an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.2°F (-8.8°C), January is the coldest month.Humidity
January and July, with an average relative humidity of 83%, are the most humid months.Rainfall
In January, the rain falls for 5 days. Throughout January, 1.38" (35mm) of precipitation is accumulated. In Sunny Hill, during the entire year, the rain falls for 143.6 days and collects up to 27.99" (711mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 11.2 days and typically aggregates up to 4.09" (104mm) of snow.Daylight
In January, the average length of the day is 9h and 35min.On the first day of January in Sunny Hill, sunrise is at 7:27 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:15 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4h 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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in January converts into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Sunny Hill, IL
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in January: 16.2°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 (16.2°F).
Average pressure in January
Sunny Hill, 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 (29.9"Hg).
Average wind speed in January
Sunny Hill, IL
- Average wind speed in January: 10.4mph
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
Sunny Hill, 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
Sunny Hill, IL
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days in January
Sunny Hill, IL
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).
Average snowfall in January
Sunny Hill, IL
- Average snowfall in January: 4.09"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Sunny Hill, IL
- Average snowfall days in January: 11.2 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Sunny Hill, 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: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Sunny Hill, IL
- Average sunshine days in January: 15.4 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in January
Sunny Hill, IL
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Sunny Hill, IL
- Average cloud cover in January: 57
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Sunny Hill, 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).
