December weather forecast
Nashville, IL

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Weather in December

December, the first month of the winter in Nashville, is still a chilly month, with an average temperature ranging between min 30.7°F (-0.7°C) and max 42.8°F (6°C).

Temperature

December shows a mild decline in the average high-temperature, falling from November's fresh 53.1°F (11.7°C) to a chilly 42.8°F (6°C). Nashville observes an average low-temperature of 30.7°F (-0.7°C) during December nights.

Humidity

The average relative humidity in December in Nashville is 78%.

Rainfall

In Nashville, during December, the rain falls for 9.2 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Nashville, during the entire year, the rain falls for 166.8 days and collects up to 37.83" (961mm) of precipitation.

Snowfall

January through April, September, November and December are months with snowfall. In December, it is snowing for 4.5 days. Throughout December, 1.3" (33mm) of snow is accumulated. In Nashville, during the entire year, snow falls for 23.2 days and aggregates up to 7.87" (200mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Nashville.
On the first day of the month, sunrise is at 6:56 am and sunset at 4:37 pm. On the last day of December, in Nashville, sunrise is at 7:14 am and sunset at 4:47 pm CST.

Sunshine

In Nashville, the average sunshine in December is 4.8h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

How cold is it in Nashville in December?

The average high-temperature and low-temperature in Nashville, Illinois, during December are 42.8°F (6°C) and 30.7°F (-0.7°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 95°F (35°C).

What is the average humidity in December in Nashville?

In December, the average relative humidity is 78%.

How much does it rain in Nashville in December?

In Nashville, during December, the rain falls for 9.2 days and regularly aggregates up to 2.56" (65mm) of precipitation.

How much does it snow in Nashville in December?

In December, in Nashville, Illinois, it is snowing for 4.5 days. Throughout December, 1.3" (33mm) of snow is accumulated.

What is the month with the shortest days in Nashville?

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

How many hours of daylight does Nashville have in December?

The average day length in December in Nashville is 9h and 33min.

When is the sunrise / sunset in December in Nashville?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:37 pm. On the last day of the month, in Nashville, Illinois, sunrise is at 7:14 am and sunset at 4:47 pm CST.

How long on average sun shines in December in Nashville?

In December, the average sunshine duration in Nashville is 4.8h.

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

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

What is the UV index reading in December in Nashville?

In December, the average daily maximum UV index in Nashville is 2. A UV Index estimate 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
Nashville, IL

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

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in December
Nashville, IL

Average pressure in December - Nashville, 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 (29.93"Hg).

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Average wind speed in December
Nashville, IL

Average wind speed in December - Nashville, IL
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in December
Nashville, IL

Average humidity in December - Nashville, IL
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Nashville, IL

Average rainfall in December - Nashville, IL
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is February (2.01").

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Average rainfall days in December
Nashville, IL

Average rainfall days in December - Nashville, IL
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is December (9.2 days).

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Average snowfall in December
Nashville, IL

Average snowfall in December - Nashville, IL
  • Average snowfall in December: 1.3"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in December
Nashville, IL

Average snowfall days in December - Nashville, IL
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Nashville, 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 month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in December
Nashville, IL

Average sunshine days in December - Nashville, IL
  • Average sunshine days in December: 17 days

The months with the most sunshine days are October and November (17.5 days).
The month with the least sunshine days is May (9.3 days).

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Average UV index in December
Nashville, IL

Average UV index in December - Nashville, 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 and December (UV index 2).

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Average cloud cover in December
Nashville, IL

Average cloud cover in December - Nashville, IL
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in December
Nashville, IL

Average visibility in December - Nashville, 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).

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Nashville, Illinois, USA

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