Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With average temperatures fluctuating between a high of 28°F (-2.2°C) and a low of 16.7°F (-8.5°C), January stands out as the coldest month.Humidity
January and February, with an average relative humidity of 83%, are the most humid months in Wheaton, Illinois.Rainfall
In Wheaton, in January, during 6.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Wheaton, during the entire year, the rain falls for 164.3 days and collects up to 33.78" (858mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. January is the month with the most snowfall in Wheaton, Illinois. Snow falls for 13.1 days and accumulates 5.87" (149mm) of snow.Daylight
In Wheaton, the average length of the day in January is 9h and 33min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:31 pm. On the last day of January, in Wheaton, sunrise is at 7:05 am and sunset at 5:05 pm CST.
Sunshine
January has the least sunshine of the year in Wheaton, with an average of 3.7h of sunshine.UV index
The month with the lowest UV index in Wheaton is January, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the maximum UV index of 1 translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What is the coldest time of year in Wheaton?
How cold is it in Wheaton in January?
What is the most humid month in Wheaton?
What is the average humidity in January in Wheaton?
How many days does it rain in January in Wheaton?
When does it snow the most in Wheaton?
How many days does it snow in January in Wheaton?
How many hours of daylight does Wheaton have in January?
When are sunrise and sunset in January in Wheaton?
What is the month with the least sunshine in Wheaton?
How long on average sun shines in January in Wheaton?
When is the lowest UV index in Wheaton?
What is the UV index intensity in January in Wheaton?
Average temperature in January
Wheaton, IL
- Average high temperature in January: 28°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°F).
- Average low temperature in January: 16.7°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 (16.7°F).
Average pressure in January
Wheaton, 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
Wheaton, IL
- Average wind speed in January: 9.8mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Wheaton, 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
Wheaton, IL
- Average rainfall in January: 1.81"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are November and December (1.65").
Average rainfall days in January
Wheaton, IL
- Average rainfall days in January: 6.4 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in January
Wheaton, IL
- Average snowfall in January: 5.87"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Wheaton, IL
- Average snowfall days in January: 13.1 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Wheaton, IL
- Average daylight in January: 9h and 3min
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 12min).
- Average sunshine in January: 3h and 4min
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
Wheaton, IL
- Average sunshine days in January: 14.3 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in January
Wheaton, IL
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Wheaton, IL
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in January
Wheaton, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Wheaton, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
