December weather forecast
Braidwood, IL

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Weather in December

December, the first month of the winter in Braidwood, is also a wintry month, with an average temperature varying between 35.6°F (2°C) and 25.5°F (-3.6°C).

Temperature

A moderate decline in the average high-temperature is seen during December, decreasing from a chilly 47.3°F (8.5°C) in November to an icy 35.6°F (2°C). In Braidwood, in December, the average low-temperature is a subzero cold 25.5°F (-3.6°C).

Humidity

In Braidwood, the average relative humidity in December is 81%.

Rainfall

In December, in Braidwood, Illinois, the rain falls for 8.7 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. Throughout the year, in Braidwood, there are 160.4 rainfall days, and 33.5" (851mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Braidwood, during December, snow falls for 8.5 days and regularly aggregates up to 2.44" (62mm) of snow. In Braidwood, during the entire year, snow falls for 38.7 days and aggregates up to 15.39" (391mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 6:59 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:33 pm CST.

Sunshine

In December, the average sunshine in Braidwood, Illinois, is 4.3h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 1 in December transforms into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Braidwood?

The high-temperature, in December, in Braidwood, is 35.6°F (2°C), while the low-temperature averages to 25.5°F (-3.6°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in December in Braidwood?

In Braidwood, the average relative humidity in December is 81%.

How many days does it rain in December in Braidwood?

In December, in Braidwood, Illinois, the rain falls for 8.7 days. Throughout December, 1.81" (46mm) of precipitation is accumulated.

How many days does it snow in December in Braidwood?

In Braidwood, Illinois, in December, snow falls for 8.5 days, with typically accumulated 2.44" (62mm) of snow.

What is the month with the shortest days in Braidwood?

December has the shortest days of the year in Braidwood, with an average of 9h and 18min of daylight.

How many hours of daylight does Braidwood have in December?

The average day length in December is 9h and 16min.

What time are sunrise and sunset in December in Braidwood?

On the first day of December in Braidwood, sunrise is at 6:59 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:33 pm CST.

How long on average sun shines in December in Braidwood?

The average sunshine duration in December in Braidwood is 4.3h.

What is the month with the lowest UV index in Braidwood?

With an average maximum UV index of 1, December is the month with the lowest UV index in Braidwood, Illinois.

What is the UV index reading in December in Braidwood?

In Braidwood, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Braidwood, IL

Average temperature in December - Braidwood, IL
  • Average high temperature in December: 35.6°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in December
Braidwood, IL

Average pressure in December - Braidwood, IL
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Braidwood, IL

Average wind speed in December - Braidwood, IL
  • Average wind speed in December: 9.3mph

The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Braidwood, IL

Average humidity in December - Braidwood, IL
  • Average humidity in December: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Braidwood, IL

Average rainfall in December - Braidwood, IL
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are February and November (1.69").

Average rainfall days in December
Braidwood, IL

Average rainfall days in December - Braidwood, IL
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in December
Braidwood, IL

Average snowfall in December - Braidwood, IL
  • Average snowfall in December: 2.44"

The month with the highest snowfall is February (4.29").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Braidwood, IL

Average snowfall days in December - Braidwood, IL
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Braidwood, IL

Average daylight in December / Average sunshine in December - Braidwood, IL
  • Average daylight in December: 9h and 2min

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 18min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Braidwood, IL

Average sunshine days in December - Braidwood, IL
  • Average sunshine days in December: 16 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (8.6 days).

Average UV index in December
Braidwood, IL

Average UV index in December - Braidwood, IL
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Braidwood, IL

Average cloud cover in December - Braidwood, IL
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in December
Braidwood, IL

Average visibility in December - Braidwood, IL
  • Average visibility in December: 6mi

The months with the highest visibility are January, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are February, July and August (5mi).

Braidwood, Illinois, USA

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