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
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
What is the temperature in December in Rison?
What is the most humid month in Rison?
What is the average humidity in December in Rison?
How much does it rain in Rison in December?
When does it start snowing in Rison?
What is the month with the shortest days in Rison?
How many hours of daylight does Rison have in December?
When are sunrise and sunset in December in Rison?
How many hours of sunshine does Rison have in December?
When is the lowest UV index in Rison?
What is the UV index intensity in December in Rison?
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 5min
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 1min
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).
Rison, Arkansas, USA
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