December weather forecastKenilworth, IL
December
Weather in December
December, the first month of the winter in Kenilworth, is also an icy month, with temperature in the range of an average high of 35.4°F (1.9°C) and an average low of 27.5°F (-2.5°C).Temperature
As November transitions into December, Kenilworth sees a drop in the average high-temperature, transitioning from a chilly 45.9°F (7.7°C) to a wintry 35.4°F (1.9°C). Kenilworth maintains a consistent average nighttime low-temperature of 27.5°F (-2.5°C) throughout December.Humidity
In December, the average relative humidity in Kenilworth is 80%.Rainfall
The month with the least rainfall in Kenilworth is December, when the rain falls for 7.9 days and typically collects 1.38" (35mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Kenilworth, Illinois. In Kenilworth, in December, during 8 snowfall days, 2.05" (52mm) of snow is typically accumulated. Throughout the year, there are 40.5 snowfall days, and 12.76" (324mm) of snow is accumulated.Daylight
December has the shortest days of the year in Kenilworth, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:20 pm. On the last day of December, in Kenilworth, sunrise is at 7:19 am and sunset at 4:29 pm CST.
Sunshine
The average sunshine in December is 4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Kenilworth. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 1 in December translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Boost your sun resistance with garments that are densely woven yet spacious. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kenilworth, IL
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in December: 27.5°F
The months with the highest average low temperature are July and August (68°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Kenilworth, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Kenilworth, IL
- Average wind speed in December: 11.9mph
The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in December
Kenilworth, IL
- Average humidity in December: 80%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Kenilworth, IL
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is December (1.38").
Average rainfall days in December
Kenilworth, IL
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in December
Kenilworth, IL
- Average snowfall in December: 2.05"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Kenilworth, IL
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (11.6 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
Kenilworth, IL
- Average daylight in December: 9h and 12min
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 December: 4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Kenilworth, IL
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is December (15.3 days).
The months with the least sunshine days are June and July (10.9 days).
Average UV index in December
Kenilworth, IL
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Kenilworth, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Kenilworth, 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).





