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
In Brookfield, the month of January registers the lowest temperatures, averaging 29.1°F (-1.6°C) at the peak and 19.2°F (-7.1°C) at the lowest.Humidity
The months with the highest humidity are January and February, with an average relative humidity of 82%.Rainfall
In Brookfield, in January, it is raining for 3.1 days, with typically 0.43" (11mm) of accumulated precipitation. In Brookfield, during the entire year, the rain falls for 92 days and collects up to 7.4" (188mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Brookfield, Illinois, in January, during 7.2 snowfall days, 1.06" (27mm) of snow is typically accumulated. Throughout the year, there are 26.5 snowfall days, and 4.06" (103mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 33min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:30 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:04 pm CST.
Sunshine
With an average of 3.8h 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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 1 during January translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Brookfield have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Brookfield have in January?
When is the lowest UV index in Brookfield?
What is the UV index reading in January?
Average temperature in January
Brookfield, IL
- Average high temperature in January: 29.1°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in January: 19.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in January
Brookfield, 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
Brookfield, IL
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in January
Brookfield, IL
- Average humidity in January: 82%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Brookfield, IL
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is May (1.1").
The driest months (with the least rainfall) are February, March, November and December (0.39").
Average rainfall days in January
Brookfield, IL
- Average rainfall days in January: 3.1 days
The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in January
Brookfield, IL
- Average snowfall in January: 1.06"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Brookfield, IL
- Average snowfall days in January: 7.2 days
The month with the highest number of snowfall days is February (7.3 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
Brookfield, IL
- Average daylight in January: 9h and 4min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Brookfield, IL
- Average sunshine days in January: 22.1 days
The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is June (14.3 days).
Average UV index in January
Brookfield, IL
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Brookfield, 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 27).
Average visibility in January
Brookfield, 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).
Brookfield, Illinois, USA
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