December weather forecast
Bellmont, IL

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Weather in December

The first month of the winter, December, is also a frosty month in Bellmont, Illinois, with temperature in the range of an average low of 31.3°F (-0.4°C) and an average high of 42.8°F (6°C).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from a fresh 52.9°F (11.6°C) in November to a chilly 42.8°F (6°C). Bellmont experiences an average temperature drop to a subzero cold 31.3°F (-0.4°C) during December nights.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Bellmont, in December, it is raining for 10.3 days, with typically 2.6" (66mm) of accumulated precipitation. In Bellmont, during the entire year, the rain falls for 155.6 days and collects up to 34.65" (880mm) of precipitation.

Snowfall

Months with snowfall in Bellmont are January through April, November and December. In Bellmont, during December, snow falls for 4.2 days and regularly aggregates up to 1.14" (29mm) of snow. In Bellmont, during the entire year, snow falls for 21 days and aggregates up to 5.39" (137mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 6:50 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:41 pm CST.

Sunshine

The average sunshine in December 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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

The high-temperature, in December, in Bellmont, is 42.8°F (6°C), while the low-temperature averages to 31.3°F (-0.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 91.4°F (33°C).

What is the average humidity in December?

In Bellmont, Illinois, the average relative humidity in December is 78%.

How many days does it rain in December?

In December, in Bellmont, the rain falls for 10.3 days. Throughout December, 2.6" (66mm) of precipitation is accumulated.

How much does it snow in December?

In Bellmont, in December, during 4.2 snowfall days, 1.14" (29mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

In Bellmont, the average day length in December is 9h and 32min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:50 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:41 pm CST.

How many hours of sunshine does Bellmont have 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?

In December, the average daily maximum UV index in Bellmont is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
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
Bellmont, IL

Average temperature in December - Bellmont, IL
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 31.3°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 (24.8°F).

Average pressure in December
Bellmont, IL

Average pressure in December - Bellmont, IL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Bellmont, IL

Average wind speed in December - Bellmont, IL
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in December
Bellmont, IL

Average humidity in December - Bellmont, 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 (70%).

Average rainfall in December
Bellmont, IL

Average rainfall in December - Bellmont, IL
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is April (4.72").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in December
Bellmont, IL

Average rainfall days in December - Bellmont, IL
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in December
Bellmont, IL

Average snowfall in December - Bellmont, IL
  • Average snowfall in December: 1.14"

The month with the highest snowfall is January (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Bellmont, IL

Average snowfall days in December - Bellmont, IL
  • Average snowfall days in December: 4.2 days

The month with the highest number of snowfall days is January (6.8 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
Bellmont, IL

Average daylight in December / Average sunshine in December - Bellmont, 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 4min

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 18min).

Average sunshine days in December
Bellmont, IL

Average sunshine days in December - Bellmont, IL
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (10.3 days).

Average UV index in December
Bellmont, IL

Average UV index in December - Bellmont, 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
Bellmont, IL

Average cloud cover in December - Bellmont, IL
  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in December
Bellmont, IL

Average visibility in December - Bellmont, 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).

Bellmont, Illinois, USA

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