December weather forecastCentral City, IL
December
Weather in December
The first month of the winter, December, is still a cold month in Central City, Illinois, with an average temperature ranging between min 30.6°F (-0.8°C) and max 41.9°F (5.5°C).Temperature
Central City's December weather shows a moderate shift in high-temperatures, falling from November's cool 52.3°F (11.3°C) to a cold 41.9°F (5.5°C). Throughout December, Central City encounters an average temperature drop to a freezing cold 30.6°F (-0.8°C).Humidity
In December, the average relative humidity in Central City is 78%.Rainfall
In Central City, during December, the rain falls for 4.1 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Central City, Illinois, during the entire year, the rain falls for 83.2 days and collects up to 6.81" (173mm) of precipitation.Snowfall
Months with snowfall in Central City are January through March, November and December. In Central City, during December, snow falls for 2.2 days and regularly aggregates up to 0.16" (4mm) of snow. Throughout the year, in Central City, Illinois, there are 11.9 snowfall days, and 0.79" (20mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Central City.On the first day of December, sunrise is at 6:55 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:45 pm CST.
Sunshine
In Central City, Illinois, the average sunshine in December is 4.8h.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Central City, Illinois. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Central City, IL
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in December: 30.6°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Central City, 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
Central City, IL
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Central City, IL
- Average humidity in December: 78%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Central City, IL
- Average rainfall in December: 0.43"
The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in December
Central City, IL
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in December
Central City, IL
- Average snowfall in December: 0.16"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Central City, IL
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is January (3.8 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
Central City, 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 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Central City, IL
- Average sunshine days in December: 24.5 days
The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).
Average UV index in December
Central City, 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, November and December (UV index 2).
Average cloud cover in December
Central City, IL
- Average cloud cover in December: 50
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Central City, 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).
