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
The arrival of December suggests a slight decrease in the average high-temperature, moving from an agreeable 68°F (20°C) in November to a refreshing 60.6°F (15.9°C). Plains's nighttime temperature during December is consistently averaged at a frosty 45.9°F (7.7°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 82%.Rainfall
In Plains, during December, the rain falls for 13.4 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Plains, during the entire year, the rain falls for 175 days and collects up to 28.74" (730mm) of precipitation.Snowfall
Months with snowfall are January and December. The months with the most snowfall are January and December, with an average 0.2" (5mm) of accumulated snow.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:45 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:14 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 3 in December suggests the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month?
When does it start snowing?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Plains, LA
- Average high temperature in December: 60.6°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 (58.3°F).
- Average low temperature in December: 45.9°F
The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in December
Plains, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed in December
Plains, LA
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).
Average humidity in December
Plains, LA
- Average humidity in December: 82%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Plains, LA
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in December
Plains, LA
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Plains, LA
- Average snowfall in December: 0.2"
The months with the highest snowfall are January and December (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Plains, LA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Plains, LA
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Plains, LA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in December
Plains, LA
- Average UV index in December: 3
The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Plains, LA
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Plains, LA
- Average visibility in December: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Plains, Louisiana, USA
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