December weather forecastBridgeport, IL
December
Weather in December
The first month of the winter, December, is also an icy month in Bridgeport, Illinois, with temperature in the range of an average high of 41.9°F (5.5°C) and an average low of 30.9°F (-0.6°C).Temperature
Bridgeport in December undergoes a mild reduction in the average high-temperature, shifting from November's cool 52.2°F (11.2°C) to a cold 41.9°F (5.5°C). Bridgeport records an average low-temperature of 30.9°F (-0.6°C) throughout the month of December.Humidity
The average relative humidity in December is 79%.Rainfall
In Bridgeport, in December, during 10.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 160.3 rainfall days, and 34.33" (872mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Bridgeport, in December, during 4.3 snowfall days, 1.26" (32mm) of snow is typically accumulated. Throughout the year, there are 21.7 snowfall days, and 5.87" (149mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:50 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:39 pm CST.
Sunshine
In Bridgeport, the average sunshine in December is 4.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bridgeport, IL
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Bridgeport, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Bridgeport, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Bridgeport, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Bridgeport, IL
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is April (4.69").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Bridgeport, IL
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in December
Bridgeport, IL
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Bridgeport, IL
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Bridgeport, IL
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Bridgeport, IL
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in December
Bridgeport, IL
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Bridgeport, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Bridgeport, IL
- Average visibility in December: 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).
