December weather forecastCalhoun, IL
December
Weather in December
December, the first month of the winter in Calhoun, is still a cold month, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 30.9°F (-0.6°C).Temperature
A shift in the average high-temperature occurs in December, reducing from a fresh 52°F (11.1°C) in November to a cold 41.5°F (5.3°C). December witnesses an average low-temperature hovering around a freezing cold 30.9°F (-0.6°C).Humidity
In Calhoun, the average relative humidity in December is 78%.Rainfall
In Calhoun, in December, it is raining for 10.5 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 152.3 rainfall days, and 27.99" (711mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Calhoun, in December, during 4.5 snowfall days, 1.34" (34mm) of snow is typically accumulated. Throughout the year, there are 20.3 snowfall days, and 5.47" (139mm) 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 6:51 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:41 pm CST.
Sunshine
The average sunshine in December is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Calhoun, IL
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (84.2°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 (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Calhoun, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Calhoun, IL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in December
Calhoun, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Calhoun, IL
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is April (4.09").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Calhoun, IL
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Calhoun, IL
- Average snowfall in December: 1.34"
The month with the highest snowfall is January (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Calhoun, IL
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (5.9 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
Calhoun, 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 36min
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
Calhoun, IL
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in December
Calhoun, IL
- Average UV index in December: 2
The months with the highest UV index are May, 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
Calhoun, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Calhoun, 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).
