December weather forecast
Table Grove, IL

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Weather in December

The first month of the winter, December, is also an icy month in Table Grove, Illinois, with an average temperature varying between 25.7°F (-3.5°C) and 37°F (2.8°C).

Temperature

December's onset brings a slight change in high-temperatures, falling from a frosty 48.9°F (9.4°C) in November to an icy 37°F (2.8°C). During the month of December, an average low-temperature of 25.7°F (-3.5°C) is recorded.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Table Grove, during December, the rain falls for 5.6 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Table Grove, during the entire year, the rain falls for 122.7 days and collects up to 17.8" (452mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Table Grove, in December, during 4.9 snowfall days, 0.79" (20mm) of snow is typically accumulated. Throughout the year, there are 25.2 snowfall days, and 5.47" (139mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:06 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:45 pm CST.

Sunshine

In December, the average sunshine is 4.6h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Table Grove, in December, the average high-temperature is 37°F (2.8°C), and the average low-temperature is 25.7°F (-3.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 79%.

How many days does it rain in December?

In December, the rain falls for 5.6 days. Throughout December, 0.75" (19mm) of precipitation is accumulated.

How much does it snow in December?

In Table Grove, Illinois, in December, snow falls for 4.9 days, with typically accumulated 0.79" (20mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 21min.

When are sunrise and sunset in December in Table Grove?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:45 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.6h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Table Grove, IL

Average temperature in December - Table Grove, IL
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in December
Table Grove, IL

Average pressure in December - Table Grove, IL
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Table Grove, IL

Average wind speed in December - Table Grove, IL
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in December
Table Grove, IL

Average humidity in December - Table Grove, IL
  • Average humidity in December: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Table Grove, IL

Average rainfall in December - Table Grove, IL
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in December
Table Grove, IL

Average rainfall days in December - Table Grove, IL
  • Average rainfall days in December: 5.6 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (4.2 days).

Average snowfall in December
Table Grove, IL

Average snowfall in December - Table Grove, IL
  • Average snowfall in December: 0.79"

The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Table Grove, IL

Average snowfall days in December - Table Grove, IL
  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is January (7.6 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
Table Grove, IL

Average daylight in December / Average sunshine in December - Table Grove, IL
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Table Grove, IL

Average sunshine days in December - Table Grove, IL
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is June (12.2 days).

Average UV index in December
Table Grove, IL

Average UV index in December - Table Grove, IL
  • Average UV index in December: 2

The months with the highest UV index are 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
Table Grove, IL

Average cloud cover in December - Table Grove, IL
  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in December
Table Grove, IL

Average visibility in December - Table Grove, IL
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Table Grove, Illinois, USA

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