December weather forecastRison, AR
December
Weather in December
December, the first month of the winter in Rison, is also a fresh month, with an average temperature fluctuating between 54°F (12.2°C) and 39°F (3.9°C).Temperature
As November shifts into December, a minor alteration in temperatures is observed, with average highs reducing from an enjoyable 61.7°F (16.5°C) to a fresh 54°F (12.2°C). Rison in December anticipates an average nighttime temperature of 39°F (3.9°C).Humidity
March and December, with an average relative humidity of 80%, are the most humid months.Rainfall
In December, the rain falls for 11.1 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. Throughout the year, there are 145.6 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Rison. December is the first month it typically snows in Rison, Arkansas. Throughout December, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 3.7 snowfall days, and 1.1" (28mm) of snow is accumulated.Daylight
December has the shortest days of the year in Rison, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 4:59 pm. On the last day of December, sunrise is at 7:13 am and sunset at 5:10 pm CST.
Sunshine
The average sunshine in December is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Rison. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rison, AR
- Average high temperature in December: 54°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in December: 39°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in December
Rison, 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
Rison, AR
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Rison, AR
- Average humidity in December: 80%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Rison, AR
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is April (3.23").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in December
Rison, AR
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in December
Rison, AR
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Rison, AR
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.7 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
Rison, AR
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Rison, AR
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is October (20.3 days).
The months with the least sunshine days are July and August (12.4 days).
Average UV index in December
Rison, AR
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Rison, AR
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Rison, AR
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
