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's arrival aligns with a minor decrease in average high-temperatures, from November's refreshing 59.5°F (15.3°C) to a fresh 50.9°F (10.5°C). Mountain Valley's average low-temperature is measured at a cold 36.5°F (2.5°C) during December.Humidity
In December, the average relative humidity in Mountain Valley, Arkansas, is 79%.Rainfall
In December, the rain falls for 12.1 days. Throughout December, 3.31" (84mm) of precipitation is accumulated. Throughout the year, in Mountain Valley, there are 161.4 rainfall days, and 38.94" (989mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Mountain Valley, in December, snow falls for 0.8 days, with typically accumulated 0.35" (9mm) of snow. In Mountain Valley, during the entire year, snow falls for 6.3 days and aggregates up to 2.99" (76mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Mountain Valley, Arkansas.On the first day of the month, sunrise is at 7:01 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:19 am and sunset at 5:12 pm CST.
Sunshine
The average sunshine in December is 5.2h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the usual temperature for Mountain Valley in December?
What is the average humidity in December in Mountain Valley?
How many days does it rain in December in Mountain Valley?
How many days does it snow in December in Mountain Valley?
What is the month with the shortest days in Mountain Valley?
What is the average length of the day in December in Mountain Valley?
What time are sunrise and sunset in December in Mountain Valley?
How long on average sun shines in December in Mountain Valley?
What is the month with the lowest UV index in Mountain Valley?
What is the UV index reading in December in Mountain Valley?
Average temperature in December
Mountain Valley, AR
- Average high temperature in December: 50.9°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 (48.7°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in December
Mountain Valley, 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
Mountain Valley, AR
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Mountain Valley, 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
Mountain Valley, AR
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Mountain Valley, AR
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Mountain Valley, AR
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Mountain Valley, AR
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.5 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
Mountain Valley, 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 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Mountain Valley, AR
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
Mountain Valley, 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
Mountain Valley, AR
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in December
Mountain Valley, 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).
Mountain Valley, Arkansas, USA
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