December weather forecastChannahon, IL
December
Weather in December
December, the first month of the winter in Channahon, is still a cold month, with an average temperature fluctuating between 35.6°F (2°C) and 25.2°F (-3.8°C).Temperature
The average high-temperature decreases in December, shifting from a chilly 47.1°F (8.4°C) in November to a wintry 35.6°F (2°C). In the month of December, an average of 25.2°F (-3.8°C) marks the low-temperature.Humidity
The average relative humidity in December is 82%.Rainfall
In Channahon, in December, it is raining for 8.5 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 154.5 rainfall days, and 32.68" (830mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Channahon, in December, during 7.6 snowfall days, 2.36" (60mm) of snow is typically accumulated. In Channahon, during the entire year, snow falls for 36.3 days and aggregates up to 14.53" (369mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:00 am and sunset at 4:24 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:33 pm CST.
Sunshine
The average sunshine in December in Channahon is 4.2h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Channahon, IL
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in December
Channahon, 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
Channahon, IL
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Channahon, IL
- Average humidity in December: 82%
The months with the highest relative humidity are February, July and August (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Channahon, IL
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in December
Channahon, IL
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Channahon, IL
- Average snowfall in December: 2.36"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Channahon, IL
- Average snowfall days in December: 7.6 days
The month with the highest number of snowfall days is January (11.3 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
Channahon, IL
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 4h and 12min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Channahon, IL
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Channahon, 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
Channahon, IL
- Average cloud cover in December: 57
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
Channahon, IL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
