December weather forecastBentonville, IN

December

Weather in December

December, the first month of the winter in Bentonville, is also a wintry month, with an average temperature ranging between max 38.3°F (3.5°C) and min 28°F (-2.2°C).

Temperature

The beginning of December involves a decrease in the average high-temperature, transitioning from a frosty 48.9°F (9.4°C) in November to an icy 38.3°F (3.5°C). Bentonville's nighttime temperature in December drops to an average of 28°F (-2.2°C).

Humidity

January and December, with an average relative humidity of 83%, are the most humid months.

Rainfall

In Bentonville, in December, during 7.7 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, there are 111.7 rainfall days, and 8.86" (225mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Bentonville, during December, snow falls for 7.3 days and regularly aggregates up to 0.47" (12mm) of snow. In Bentonville, during the entire year, snow falls for 29.7 days and aggregates up to 2.68" (68mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:43 am and sunset at 5:17 pm. On the last day of December, sunrise is at 8:01 am and sunset at 5:26 pm EST.

Sunshine

In December, the average sunshine is 4h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, the UV index of 1 transforms into the following advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

Bentonville in December has an average high-temperature of 38.3°F (3.5°C) and an average low-temperature of 28°F (-2.2°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

The months with the highest humidity are January and December, with an average relative humidity of 83%.

The average relative humidity in December is 83%.

In Bentonville, in December, during 7.7 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

In December, it is snowing for 7.3 days. Throughout December, 0.47" (12mm) of snow is accumulated.

With an average of 9h and 24min of daylight, December has the shortest days of the year.

The average day length in December in Bentonville is 9h and 25min.

In December, on the first day of the month, sunrise is at 7:43 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:26 pm EST.

The average sunshine duration in December is 4h.

The month with the lowest UV index is December, with an average maximum UV index of 1.

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bentonville, IN

  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in December
Bentonville, IN

  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Bentonville, IN

  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Bentonville, IN

  • Average humidity in December: 83%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Bentonville, IN

  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in December
Bentonville, IN

  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in December
Bentonville, IN

  • Average snowfall in December: 0.47"

The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Bentonville, IN

  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Bentonville, IN

  • Average daylight in December: 9h and 24min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Bentonville, IN

  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is May (13.1 days).

Average UV index in December
Bentonville, IN

  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Bentonville, IN

  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Bentonville, IN

  • Average visibility in December: 6mi

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