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 onset of December is marked by a minor decrease in temperature, transitioning from a refreshing 66.7°F (19.3°C) in November to a mild 59.4°F (15.2°C). During December, Fullerton experiences an average low-temperature of 44.1°F (6.7°C) at night.Humidity
In Fullerton, the average relative humidity in December is 82%.Rainfall
In Fullerton, Louisiana, in December, it is raining for 13.5 days, with typically 3.46" (88mm) of accumulated precipitation. In Fullerton, during the entire year, the rain falls for 181.2 days and collects up to 39.17" (995mm) of precipitation.Snowfall
January through March, September 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 0.16" (4mm) of snow. Throughout the year, in Fullerton, 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 in Fullerton.On the first day of the month, sunrise is at 6:52 am and sunset at 5:09 pm. On the last day of December, in Fullerton, sunrise is at 7:09 am and sunset at 5:20 pm CST.
Sunshine
With an average of 4.9h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Fullerton. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What are December temperatures in Fullerton?
What is the average humidity in December in Fullerton?
How many days does it rain in December in Fullerton?
When does it start to snow in Fullerton?
What is the month with the shortest days in Fullerton?
How many hours of daylight does Fullerton have in December?
When is the sunrise / sunset in December in Fullerton?
What is the month with the least sunshine in Fullerton?
How long on average sun shines in December in Fullerton?
When is the lowest UV index in Fullerton?
What is the UV index intensity in December in Fullerton?
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
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