January weather forecastWoodstock, IL
January
Weather in January
January, the same as December, in Woodstock, Illinois, is another subzero cold winter month, with an average temperature varying between 13.8°F (-10.1°C) and 26.1°F (-3.3°C).Temperature
The coldest month is January, with an average high-temperature of 26.1°F (-3.3°C) and an average low-temperature of 13.8°F (-10.1°C).Humidity
The months with the highest humidity in Woodstock are January and February, with an average relative humidity of 86%.Rainfall
In January, in Woodstock, the rain falls for 4.7 days. Throughout January, 1.14" (29mm) of precipitation is accumulated. Throughout the year, there are 146.8 rainfall days, and 22.83" (580mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall in Woodstock. Snow falls for 13.3 days and accumulates 3.7" (94mm) of snow.Daylight
In January, the average length of the day in Woodstock is 9h and 31min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:31 pm. On the last day of January, in Woodstock, sunrise is at 7:08 am and sunset at 5:06 pm CST.
Sunshine
January has the least sunshine of the year in Woodstock, 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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the maximum UV index of 1 suggests these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Woodstock, IL
- Average high temperature in January: 26.1°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 (26.1°F).
- Average low temperature in January: 13.8°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in January
Woodstock, 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
Woodstock, IL
- Average wind speed in January: 9.8mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in January
Woodstock, IL
- Average humidity in January: 86%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in January
Woodstock, IL
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in January
Woodstock, IL
- Average rainfall days in January: 4.7 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in January
Woodstock, IL
- Average snowfall in January: 3.7"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Woodstock, IL
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Woodstock, 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 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Woodstock, IL
- Average sunshine days in January: 14.1 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (10 days).
Average UV index in January
Woodstock, IL
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Woodstock, 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
Woodstock, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).





