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 brings a slight decrease in the average high-temperature, shifting from a refreshing 63.7°F (17.6°C) in November to a moderate 55.6°F (13.1°C). The average low-temperature, in December, is a cold 41.5°F (5.3°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Dean, in December, it is raining for 12.4 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, there are 155.8 rainfall days, and 37.13" (943mm) of precipitation is accumulated.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows in Dean. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Dean, there are 1.6 snowfall days, and 0.35" (9mm) of snow is accumulated.Daylight
The month with the shortest days in Dean, Louisiana, is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:53 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:12 pm CST.
Sunshine
The months with the least sunshine in Dean are February and December, with an average of 4.9h of sunshine.UV index
The months with the lowest UV index in Dean are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are December temperatures in Dean?
What is the average humidity in December in Dean?
How much does it rain in Dean in December?
When does it start snowing in Dean?
What is the month with the shortest days in Dean?
How many hours of daylight does Dean have in December?
What time are sunrise and sunset in December in Dean?
What is the month with the least sunshine in Dean?
How many hours of sunshine does Dean have in December?
When is the lowest UV index in Dean?
How high is the UV index in December in Dean?
Average temperature in December
Dean, LA
- Average high temperature in December: 55.6°F
The warmest months (with the highest average high temperature) are July and August (93.7°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in December: 41.5°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in December
Dean, LA
- Average pressure in December: 30.13"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
Dean, LA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Dean, LA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are July, August, September and October (71%).
Average rainfall in December
Dean, LA
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is April (4.25").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Dean, LA
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is August (15.1 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Dean, LA
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Dean, LA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.8 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
Dean, 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: 4h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Dean, LA
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is February (13 days).
Average UV index in December
Dean, 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
Dean, LA
- Average cloud cover in December: 48
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
Dean, LA
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Dean, Louisiana, USA
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