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
Royal's progression into December involves a minor drop in the average high-temperature, slightly receding from a refreshing 59.9°F (15.5°C) in November to a fresh 51.6°F (10.9°C). In December, Royal encounters an average low-temperature of 36.9°F (2.7°C) during the night.Humidity
In Royal, the average relative humidity in December is 79%.Rainfall
In December, in Royal, the rain falls for 10.5 days. Throughout December, 2.76" (70mm) of precipitation is accumulated. Throughout the year, in Royal, Arkansas, there are 148.1 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 0.4 days. Throughout December, 0.28" (7mm) of snow is accumulated. In Royal, Arkansas, during the entire year, snow falls for 4.2 days and aggregates up to 1.93" (49mm) of snow.Daylight
The month with the shortest days in Royal is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 5:02 pm. On the last day of December, in Royal, sunrise is at 7:19 am and sunset at 5:13 pm CST.
Sunshine
January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What is the usual temperature for Royal in December?
What is the average humidity in December in Royal?
How many days does it rain in December in Royal?
How much does it snow in Royal in December?
What is the month with the shortest days in Royal?
What is the average length of the day in December in Royal?
When is the sunrise / sunset in December in Royal?
What is the month with the least sunshine in Royal?
How long on average sun shines in December in Royal?
When is the lowest UV index in Royal?
How high is the UV index in December in Royal?
Average temperature in December
Royal, AR
- Average high temperature in December: 51.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in December: 36.9°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in December
Royal, 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
Royal, AR
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Royal, AR
- Average humidity in December: 79%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Royal, AR
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in December
Royal, AR
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in December
Royal, AR
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Royal, 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
Royal, 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 month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Royal, AR
- Average sunshine days in December: 19.1 days
The months with the most sunshine days are January and October (19.4 days).
The month with the least sunshine days is August (13.5 days).
Average UV index in December
Royal, AR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Royal, 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, July and August (Cloud cover 30).
Average visibility in December
Royal, AR
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
Royal, Arkansas, USA
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