December weather forecast
Mooseheart, IL

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Weather in December

December, the first month of the winter in Mooseheart, is also a wintry month, with an average temperature ranging between min 23.9°F (-4.5°C) and max 34.2°F (1.2°C).

Temperature

In Mooseheart, the beginning of December is marked by a lowered average high-temperature, shifting from November's frosty 45.5°F (7.5°C) to a wintry 34.2°F (1.2°C). Mooseheart experiences an average low-temperature reading of 23.9°F (-4.5°C) throughout December.

Humidity

In Mooseheart, the average relative humidity in December is 82%.

Rainfall

In Mooseheart, in December, it is raining for 6 days, with typically 0.59" (15mm) of accumulated precipitation. Throughout the year, in Mooseheart, there are 120.4 rainfall days, and 12.32" (313mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In December, it is snowing for 6.4 days. Throughout December, 0.55" (14mm) of snow is accumulated. In Mooseheart, during the entire year, snow falls for 32.3 days and aggregates up to 4.84" (123mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:01 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:32 pm CST.

Sunshine

The average sunshine in December is 4.2h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature during December is 34.2°F (1.2°C) and the low-temperature is 23.9°F (-4.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in July is appraised at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 82%.

How many days does it rain in December?

In Mooseheart, in December, during 6 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How much does it snow in December?

In Mooseheart, during December, snow falls for 6.4 days and regularly aggregates up to 0.55" (14mm) of snow.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

How many hours of daylight does Mooseheart have in December?

In Mooseheart, the average day length in December is 9h and 12min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:32 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.2h.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents 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
Mooseheart, IL

Average temperature in December - Mooseheart, IL
  • Average high temperature in December: 34.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in December: 23.9°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in December
Mooseheart, IL

Average pressure in December - Mooseheart, IL
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Mooseheart, IL

Average wind speed in December - Mooseheart, IL
  • Average wind speed in December: 9.1mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Mooseheart, IL

Average humidity in December - Mooseheart, IL
  • Average humidity in December: 82%

The months with the highest relative humidity are January, February and July (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Mooseheart, IL

Average rainfall in December - Mooseheart, IL
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in December
Mooseheart, IL

Average rainfall days in December - Mooseheart, IL
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in December
Mooseheart, IL

Average snowfall in December - Mooseheart, IL
  • Average snowfall in December: 0.55"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Mooseheart, IL

Average snowfall days in December - Mooseheart, IL
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mooseheart, IL

Average daylight in December / Average sunshine in December - Mooseheart, IL
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Mooseheart, IL

Average sunshine days in December - Mooseheart, IL
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in December
Mooseheart, IL

Average UV index in December - Mooseheart, IL
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Mooseheart, IL

Average cloud cover in December - Mooseheart, IL
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in December
Mooseheart, IL

Average visibility in December - Mooseheart, IL
  • Average visibility in December: 6mi

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

Mooseheart, Illinois, USA

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