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
In December, the average high-temperature marginally drops from an agreeable 68.4°F (20.2°C) in November to a refreshing 62.1°F (16.7°C). Robert's temperature in December lowers to a consistent average of 46.9°F (8.3°C) during the nights.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Robert, during December, the rain falls for 13.1 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Robert, during the entire year, the rain falls for 163.3 days and collects up to 27.64" (702mm) 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 0.04" (1mm) of snow. In Robert, during the entire year, snow falls for 0.4 days and aggregates up to 0.24" (6mm) 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 the month, sunrise is at 6:41 am and sunset at 5:00 pm. On the last day of December, sunrise is at 6:58 am and sunset at 5:11 pm CST.
Sunshine
February and December, with an average of 4.8h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What are the most humid months?
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?
What is the average length of the day in December?
What time are sunrise and sunset in December in Robert?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index in Robert?
How high is the UV index in December?
Average temperature in December
Robert, LA
- Average high temperature in December: 62.1°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in December: 46.9°F
The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in December
Robert, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Robert, LA
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in December
Robert, LA
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Robert, LA
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is July (3.9").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in December
Robert, LA
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.6 days).
Average snowfall in December
Robert, LA
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Robert, LA
- Average snowfall days in December: 0.2 days
The months with the highest number of snowfall days are January and December (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Robert, 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 August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Robert, LA
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in December
Robert, 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
Robert, LA
- Average cloud cover in December: 50
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in December
Robert, LA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, April, June, August, October, November and December (6mi).
The months with the lowest visibility are March, May, July and September (5mi).
Robert, Louisiana, USA
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