December weather forecast
Bentonville, AR

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The scenic residential neighborhood in Bentonville, in Northwest Arkansas
The scenic residential neighborhood in Bentonville, in Northwest Arkansas

Weather in December

December in Bentonville, Arkansas, paints a classic winter picture, with freezing temperatures and short daylight hours dominating the scene. Witness the winter solstice in its full glory, where the lowest temperatures drop to 31.6°F (-0.2°C), setting a frigid backdrop for the city. The weather changes precipitate a snowfall that is likely to yield a thickness up to 0.75" (19mm). A cold wind-whisked atmosphere encapsulates the city, enhancing the festive aura usually attached to December. Bentonville, under the December weather scenario, dresses up in a white, chilly cloak, signing off the year on a peaceful, frosty note.

Temperature

The transition into December in Bentonville involves a decrease in the average high-temperature, falling from a mild 56.5°F (13.6°C) in November to a frosty 46.6°F (8.1°C). During the nights in December, Bentonville observes an average low-temperature of 31.6°F (-0.2°C).

Humidity

The average relative humidity in December in Bentonville, Arkansas, is 74%.

Rainfall

In December, the rain falls for 8.6 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. In Bentonville, during the entire year, the rain falls for 152.6 days and collects up to 33.23" (844mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Bentonville, during December, snow falls for 2.5 days and regularly aggregates up to 0.75" (19mm) of snow. In Bentonville, during the entire year, snow falls for 12.9 days and aggregates up to 5.24" (133mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year in Bentonville.
On the first day of the month, sunrise is at 7:10 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:12 pm CST.

Sunshine

In Bentonville, the average sunshine in December is 5.5h.

UV index

The months with the lowest UV index in Bentonville are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a regular UV index of 2 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. During bright days, sunglasses that offer UVA and UVB defense are recommended. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What is the temperature in December in Bentonville?

The high-temperature in Bentonville, Arkansas, during December is 46.6°F (8.1°C) and the low-temperature is 31.6°F (-0.2°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the average humidity in December in Bentonville?

In December, the average relative humidity in Bentonville, Arkansas, is 74%.

How many days does it rain in December in Bentonville?

In Bentonville, in December, it is raining for 8.6 days, with typically 2.09" (53mm) of accumulated precipitation.

How many days does it snow in December in Bentonville?

In December, it is snowing for 2.5 days. Throughout December, 0.75" (19mm) of snow is accumulated.

What is the month with the shortest days in Bentonville?

With an average of 9h and 42min of daylight, December has the shortest days of the year in Bentonville, Arkansas.

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

In Bentonville, Arkansas, the average day length in December is 9h and 44min.

When are sunrise and sunset in December in Bentonville?

On the first day of December in Bentonville, Arkansas, sunrise is at 7:10 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:12 pm CST.

How many hours of sunshine does Bentonville have in December?

In Bentonville, Arkansas, the average sunshine duration in December is 5.5h.

When is the lowest UV index in Bentonville?

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

What is the UV index intensity in December in Bentonville?

The average daily maximum UV index in December in Bentonville, Arkansas, is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's 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
Bentonville, AR

Average temperature in December - Bentonville, AR
  • Average high temperature in December: 46.6°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in December: 31.6°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in December
Bentonville, AR

Average pressure in December - Bentonville, AR
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Bentonville, AR

Average wind speed in December - Bentonville, AR
  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

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Average humidity in December
Bentonville, AR

Average humidity in December - Bentonville, AR
  • Average humidity in December: 74%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Bentonville, AR

Average rainfall in December - Bentonville, AR
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (1.73").

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Average rainfall days in December
Bentonville, AR

Average rainfall days in December - Bentonville, AR
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in December
Bentonville, AR

Average snowfall in December - Bentonville, AR
  • Average snowfall in December: 0.75"

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

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Average snowfall days in December
Bentonville, AR

Average snowfall days in December - Bentonville, AR
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (4 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
Bentonville, AR

Average daylight in December / Average sunshine in December - Bentonville, AR
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in December
Bentonville, AR

Average sunshine days in December - Bentonville, AR
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in December
Bentonville, AR

Average UV index in December - Bentonville, AR
  • 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 and December (UV index 2).

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Average cloud cover in December
Bentonville, AR

Average cloud cover in December - Bentonville, AR
  • Average cloud cover in December: 41

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in December
Bentonville, AR

Average visibility in December - Bentonville, AR
  • 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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Bentonville, Arkansas, USA

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