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 move into December indicates a slight reduction in the average high-temperature, down from November's pleasant 68.7°F (20.4°C) to a comfortable 61.3°F (16.3°C). Throughout the month of December, Gillis sees a steady low-temperature average of 46.4°F (8°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In December, the rain falls for 12.3 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. In Gillis, during the entire year, the rain falls for 163.9 days and collects up to 27.01" (686mm) of precipitation.Snowfall
January and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Gillis, during the entire year, snow falls for 0.7 days and aggregates up to 0.2" (5mm) of 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 in Gillis, Louisiana, sunrise is at 6:52 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:22 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 4.9h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Undertake precautions - Guarding against sun damage is counselled. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Gillis have 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 is the month with the lowest UV index in Gillis?
How high is the UV index in December in Gillis?
Average temperature in December
Gillis, LA
- Average high temperature in December: 61.3°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in December: 46.4°F
The months with the highest average low temperature are July and August (74.8°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in December
Gillis, LA
- Average pressure in December: 30.11"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
Gillis, LA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Gillis, LA
- Average humidity in December: 80%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Gillis, LA
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is August (4.37").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in December
Gillis, LA
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in December
Gillis, LA
- Average snowfall in December: 0.08"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Gillis, LA
- Average snowfall days in December: 0.2 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, October and November (0 days).
Average daylight in December /
Average sunshine in December
Gillis, 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 month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Gillis, LA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is January (18.6 days).
The month with the least sunshine days is August (7.6 days).
Average UV index in December
Gillis, LA
- Average UV index in December: 3
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 3).
Average cloud cover in December
Gillis, 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 October (Cloud cover 28).
Average visibility in December
Gillis, LA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
Gillis, Louisiana, USA
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