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
As November transitions into December, Fullerton sees a gentle drop in the average high-temperature, transitioning from a refreshing 66.7°F (19.3°C) to a moderate 59.4°F (15.2°C). In December, Fullerton encounters an average low-temperature of 44.1°F (6.7°C) during the night.Humidity
In Fullerton, Louisiana, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 13.5 days. Throughout December, 3.46" (88mm) of precipitation is accumulated. Throughout the year, there are 181.2 rainfall days, and 39.17" (995mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, September and December. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 1.8 snowfall days, and 0.94" (24mm) of snow is accumulated.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 6:52 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:20 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 4.9h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 3 in December leads to these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Boost your sun resistance with garments that are densely woven yet spacious. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How many days does it rain in December?
When does it start to snow?
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 in Fullerton?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Fullerton, LA
- Average high temperature in December: 59.4°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in December: 44.1°F
The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (41.2°F).
Average pressure in December
Fullerton, LA
- Average pressure in December: 30.12"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
Fullerton, LA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Fullerton, LA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Fullerton, LA
- Average rainfall in December: 3.46"
The wettest month (with the highest rainfall) is August (5").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in December
Fullerton, LA
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is August (20.5 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in December
Fullerton, LA
- Average snowfall in December: 0.16"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, October and November (0").
Average snowfall days in December
Fullerton, LA
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in December /
Average sunshine in December
Fullerton, 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: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Fullerton, LA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in December
Fullerton, LA
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Fullerton, LA
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
Fullerton, 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).
Fullerton, Louisiana, USA
Weather forecast for your location
2. Allow the app to use your location