Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December marks a gentle change in average high-temperature, declining from November's mild 58.5°F (14.7°C) to a chilly 49.6°F (9.8°C). Throughout December, Greenbrier anticipates an average low-temperature of 35.8°F (2.1°C).Humidity
The average relative humidity in December is 77%.Rainfall
In Greenbrier, in December, it is raining for 8 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, in Greenbrier, there are 118.6 rainfall days, and 13.86" (352mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Greenbrier, in December, snow falls for 0.4 days, with typically accumulated 0.08" (2mm) of snow. In Greenbrier, during the entire year, snow falls for 3.9 days and aggregates up to 0.71" (18mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, 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
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Boost your sun resistance with garments that are densely woven yet spacious. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Greenbrier have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Greenbrier have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Greenbrier, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location