December weather forecast
Greenbrier, AR

Share

Weather in December

December, the first month of the winter in Greenbrier, is also a frosty month, with an average temperature ranging between min 35.8°F (2.1°C) and max 49.6°F (9.8°C).

Temperature

December brings a slight decrease in temperature, down from a refreshing 58.5°F (14.7°C) in November to a frosty 49.6°F (9.8°C). The nighttime temperature in Greenbrier dips to a cold 35.8°F (2.1°C) on average during December.

Humidity

In Greenbrier, the average relative humidity in December is 77%.

Rainfall

In Greenbrier, in December, during 8 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Greenbrier, there are 118.6 rainfall days, and 13.86" (352mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Greenbrier, Arkansas, in December, snow falls for 0.4 days, with typically accumulated 0.08" (2mm) of snow. In Greenbrier, Arkansas, during the entire year, snow falls for 3.9 days and aggregates up to 0.71" (18mm) of snow.

Daylight

The month with the shortest days in Greenbrier is December, with an average of 9h and 48min of daylight.
On the first day of December in Greenbrier, Arkansas, sunrise is at 7:00 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:07 pm CST.

Sunshine

The average sunshine in December is 5.4h.

UV index

The months with the lowest UV index in Greenbrier are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
[Resources]

Frequently asked questions

What is the usual temperature for Greenbrier in December?

The average high-temperature and low-temperature in Greenbrier during December are 49.6°F (9.8°C) and 35.8°F (2.1°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 89.6°F (32°C).

What is the average humidity in December in Greenbrier?

In December, the average relative humidity in Greenbrier, Arkansas, is 77%.

How much does it rain in Greenbrier in December?

In Greenbrier, in December, during 8 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

How many days does it snow in December in Greenbrier?

In Greenbrier, Arkansas, in December, during 0.4 snowfall days, 0.08" (2mm) of snow is typically accumulated.

What is the month with the shortest days in Greenbrier?

December has the shortest days of the year in Greenbrier, with an average of 9h and 48min of daylight.

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

The average day length in December in Greenbrier, Arkansas, is 9h and 50min.

What time are sunrise and sunset in December in Greenbrier?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:07 pm CST.

How long on average sun shines in December in Greenbrier?

The average sunshine duration in December in Greenbrier, Arkansas, is 5.4h.

What is the month with the lowest UV index in Greenbrier?

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

How high is the UV index in December in Greenbrier?

In Greenbrier, Arkansas, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Greenbrier, AR

Average temperature in December - Greenbrier, AR
  • Average high temperature in December: 49.6°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

[Resources]

Average pressure in December
Greenbrier, AR

Average pressure in December - Greenbrier, 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 (29.94"Hg).

[Resources]

Average wind speed in December
Greenbrier, AR

Average wind speed in December - Greenbrier, AR
  • Average wind speed in December: 6.7mph

The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

[Resources]

Average humidity in December
Greenbrier, AR

Average humidity in December - Greenbrier, AR
  • Average humidity in December: 77%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (72%).

[Resources]

Average rainfall in December
Greenbrier, AR

Average rainfall in December - Greenbrier, AR
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is September (0.94").

[Resources]

Average rainfall days in December
Greenbrier, AR

Average rainfall days in December - Greenbrier, AR
  • Average rainfall days in December: 8 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is October (7.2 days).

[Resources]

Average snowfall in December
Greenbrier, AR

Average snowfall in December - Greenbrier, AR
  • Average snowfall in December: 0.08"

The month with the highest snowfall is March (0.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in December
Greenbrier, AR

Average snowfall days in December - Greenbrier, AR
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Greenbrier, AR

Average daylight in December / Average sunshine in December - Greenbrier, AR
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

[Resources]

Average sunshine days in December
Greenbrier, AR

Average sunshine days in December - Greenbrier, AR
  • Average sunshine days in December: 21.1 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (14 days).

[Resources]

Average UV index in December
Greenbrier, AR

Average UV index in December - Greenbrier, AR
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

[Resources]

Average cloud cover in December
Greenbrier, AR

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

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 26).

[Resources]

Average visibility in December
Greenbrier, AR

Average visibility in December - Greenbrier, AR
  • Average visibility in December: 6mi

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

[Resources]

Greenbrier, Arkansas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location