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 decrease in temperature, transitioning from a refreshing 63.7°F (17.6°C) in November to a cool 54.3°F (12.4°C). The average temperature during December nights is registered at a wintry 39.4°F (4.1°C).Humidity
In December, the average relative humidity is 69%.Rainfall
In Slidell, in December, during 7.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Slidell, Texas, during the entire year, the rain falls for 130.2 days and collects up to 25.31" (643mm) of precipitation.Snowfall
Months with snowfall in Slidell are January through March, November and December. In Slidell, in December, snow falls for 0.5 days, with typically accumulated 0.31" (8mm) of snow. Throughout the year, in Slidell, there are 2.9 snowfall days, and 1.26" (32mm) of snow is accumulated.Daylight
December has the shortest days of the year in Slidell, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:32 pm CST.
Sunshine
With an average of 5.8h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index in Slidell, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Slidell in December?
What is the average humidity in December in Slidell?
How many days does it rain in December in Slidell?
How many days does it snow in December in Slidell?
What is the month with the shortest days in Slidell?
What is the average length of the day in December in Slidell?
When are sunrise and sunset in December in Slidell?
What is the month with the least sunshine in Slidell?
How long on average sun shines in December in Slidell?
What is the month with the lowest UV index in Slidell?
How high is the UV index in December in Slidell?
Average temperature in December
Slidell, TX
- Average high temperature in December: 54.3°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in December: 39.4°F
The month with the highest average low temperature is July (75°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).
Average pressure in December
Slidell, TX
- 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 (29.9"Hg).
Average wind speed in December
Slidell, TX
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).
Average humidity in December
Slidell, TX
- Average humidity in December: 69%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Slidell, TX
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in December
Slidell, TX
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Slidell, TX
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Slidell, TX
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.4 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
Slidell, TX
- 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 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Slidell, TX
- Average sunshine days in December: 21.4 days
The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in December
Slidell, TX
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Slidell, TX
- Average cloud cover in December: 34
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Slidell, TX
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Slidell, Texas, USA
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