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
Vivian's weather subtly changes with the onset of December, barely falling from a comfortable 63.5°F (17.5°C) in November to a moderate 55.8°F (13.2°C). During December, Vivian consistently records a temperature low averaging a cold 41.2°F (5.1°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Vivian, Louisiana, in December, during 12.4 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. In Vivian, during the entire year, the rain falls for 149.6 days and collects up to 35.63" (905mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 3.1 snowfall days, and 1.26" (32mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:20 pm CST.
Sunshine
February and December, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Vivian, Louisiana. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 3 during December translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
What is the month with the shortest days in Vivian?
What is the average length of the day in December?
When are sunrise and sunset in December in Vivian?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Vivian, LA
- Average high temperature in December: 55.8°F
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in December: 41.2°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure in December
Vivian, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Vivian, LA
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Vivian, LA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Vivian, LA
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is April (4.84").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Vivian, LA
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in December
Vivian, LA
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Vivian, LA
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.3 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
Vivian, LA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Vivian, LA
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in December
Vivian, LA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Vivian, LA
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Vivian, LA
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Vivian, Louisiana, USA
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