December weather forecast
Mooseheart, IL

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Weather in December

The first month of the winter, December, is also an icy month in Mooseheart, Illinois, with temperature in the range of an average high of 34.2°F (1.2°C) and an average low of 23.9°F (-4.5°C).

Temperature

The arrival of December corresponds with a temperature reduction, down from November's chilly 45.5°F (7.5°C) to a cold 34.2°F (1.2°C). In December, Mooseheart experiences an average nighttime temperature of 23.9°F (-4.5°C).

Humidity

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

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

Daylight

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

Sunshine

In Mooseheart, the average sunshine in December is 4.2h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 1 in December translates into this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

How cold is it in Mooseheart in December?

In December, in Mooseheart, the average high-temperature is 34.2°F (1.2°C), and the average low-temperature is 23.9°F (-4.5°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Mooseheart?

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

How much does it rain in Mooseheart in December?

In December, the rain falls for 6 days. Throughout December, 0.59" (15mm) of precipitation is accumulated.

How many days does it snow in December in Mooseheart?

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 in Mooseheart?

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

What is the average length of the day in December in Mooseheart?

The average day length in December is 9h and 12min.

When are sunrise and sunset in December in Mooseheart?

On the first day of December in Mooseheart, 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 Mooseheart?

The average sunshine duration in December in Mooseheart, Illinois, is 4.2h.

What are the months with the lowest UV index in Mooseheart?

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

How high is the UV index in December in Mooseheart?

In December, the average daily maximum UV index in Mooseheart is 1. A UV Index estimate of 2, and below, represents a low health threat 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
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Mooseheart, Illinois, USA

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