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
Atherton's transition into December involves a gentle shift in temperature, receding from a comfortable 63.5°F (17.5°C) in November to a mild 55.9°F (13.3°C). Atherton temperatures generally rest at a low of 43°F (6.1°C) during the December nights.Humidity
The average relative humidity in December is 79%.Rainfall
In Atherton, during December, the rain falls for 13.4 days and regularly aggregates up to 3.43" (87mm) of precipitation. Throughout the year, in Atherton, there are 158.9 rainfall days, and 37.28" (947mm) of precipitation is accumulated.Snowfall
April through December are months without snowfall in Atherton.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December in Atherton, sunrise is at 6:49 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:09 pm CST.
Sunshine
In Atherton, Louisiana, the average sunshine in December is 5h.UV index
The months with the lowest UV index in Atherton 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 exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 in December translates into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What is the average December temperature in Atherton?
What is the average humidity in December in Atherton?
How many days does it rain in December in Atherton?
When it does not snow in Atherton?
Does it snow in Atherton in December?
What is the month with the shortest days in Atherton?
How many hours of daylight does Atherton have in December?
When is the sunrise / sunset in December in Atherton?
How many hours of sunshine does Atherton have in December?
What is the month with the lowest UV index in Atherton?
What is the UV index intensity in December in Atherton?
Average temperature in December
Atherton, LA
- Average high temperature in December: 55.9°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.1°F).
- Average low temperature in December: 43°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in December
Atherton, LA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Atherton, LA
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Atherton, LA
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Atherton, LA
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Atherton, LA
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in December
Atherton, LA
- Average snowfall in December: 0"
The months with the highest snowfall are January and February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Atherton, LA
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (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
Atherton, 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: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Atherton, LA
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in December
Atherton, LA
- Average UV index in December: 3
The months with the highest UV index are 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
Atherton, LA
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Atherton, LA
- 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).
Atherton, Louisiana, USA
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