December weather forecast
Central City, IL

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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.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Central City in December?

December temperatures vary between a high-temperature of 41.9°F (5.5°C) and a low-temperature of 30.6°F (-0.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is calculated to be 93.2°F (34°C).

What is the average humidity in December in Central City?

The average relative humidity in December is 78%.

How much does it rain in Central City in December?

In Central City, during December, the rain falls for 4.1 days and regularly aggregates up to 0.43" (11mm) of precipitation.

How many days does it snow in December in Central City?

In Central City, Illinois, during December, snow falls for 2.2 days and regularly aggregates up to 0.16" (4mm) of snow.

What is the month with the shortest days in Central City?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Central City, Illinois.

What is the average length of the day in December in Central City?

The average day length in December in Central City is 9h and 32min.

When are sunrise and sunset in December in Central City?

On the first day of December in Central City, Illinois, 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.

How many hours of sunshine does Central City have in December?

The average sunshine duration in December in Central City is 4.8h.

What are the months with the lowest UV index in Central City?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Central City?

In Central City, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Central City, IL

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Central City, IL
  • Average daylight in December: 9h and 3min

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 5min

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 - 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 - 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 - 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 - 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).

Central City, Illinois, USA

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