December weather forecastRivervale, AR
December
Weather in December
The first month of the winter, December, is also a frosty month in Rivervale, Arkansas, with an average temperature fluctuating between 37.2°F (2.9°C) and 49.1°F (9.5°C).Temperature
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a moderate 58.5°F (14.7°C) to a frosty 49.1°F (9.5°C). Throughout the month of December, the nighttime temperature in Rivervale dips to an average of 37.2°F (2.9°C).Humidity
In Rivervale, Arkansas, the average relative humidity in December is 77%.Rainfall
In Rivervale, Arkansas, during December, the rain falls for 11.4 days and regularly aggregates up to 3.62" (92mm) of precipitation. Throughout the year, in Rivervale, there are 166.3 rainfall days, and 41.46" (1053mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rivervale are January through March, November and December. In December, it is snowing for 1 days. Throughout December, 0.67" (17mm) of snow is accumulated. Throughout the year, in Rivervale, there are 6.9 snowfall days, and 4.61" (117mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Rivervale.On the first day of December in Rivervale, sunrise is at 6:53 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:58 pm CST.
Sunshine
In Rivervale, Arkansas, the average sunshine in December is 5.1h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rivervale, AR
- Average high temperature in December: 49.1°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 37.2°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 (32.7°F).
Average pressure in December
Rivervale, 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 (29.93"Hg).
Average wind speed in December
Rivervale, AR
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Rivervale, AR
- Average humidity in December: 77%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Rivervale, AR
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is September (2.56").
Average rainfall days in December
Rivervale, AR
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Rivervale, AR
- Average snowfall in December: 0.67"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rivervale, AR
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is February (2.3 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
Rivervale, AR
- Average daylight in December: 9h and 48min
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 6min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Rivervale, AR
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Rivervale, AR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Rivervale, AR
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in December
Rivervale, AR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
