December weather forecastLafayette, LA
December
Weather in December
December marks the arrival of winter and brings a year-end chill. Compared to the warmth of November, December is colder with temperatures fluctuating between 48°F (8.9°C) and 61.9°F (16.6°C). The shorter daylight hours are compensated by brilliant sunshine during the day. The city gets decorated for the festive season under the wintry skies, providing a beautiful view for residents and tourists alike. A touch of rain, lesser daylight, and a cloud-draped sky typify December's weather completing Lafayette's weather calendar.Temperature
December ushers in a minute temperature change, with average high-temperatures reducing from November's pleasant 68.4°F (20.2°C) to a refreshing 61.9°F (16.6°C). An average nighttime temperature of 48°F (8.9°C) is recorded during December.Humidity
In Lafayette, the average relative humidity in December is 80%.Rainfall
In December, the rain falls for 10.2 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 143.3 rainfall days, and 17.91" (455mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
December has the shortest days of the year, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:47 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:18 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 3 in December leads to these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lafayette, LA
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (58.8°F).
- Average low temperature in December: 48°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in December
Lafayette, LA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Lafayette, LA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).
Average humidity in December
Lafayette, LA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Lafayette, LA
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is March (0.83").
Average rainfall days in December
Lafayette, LA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is August (20 days).
The months with the least rainy days are January and November (7.8 days).
Average snowfall days in December
Lafayette, LA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Lafayette, LA
- Average daylight in December: 10h and 12min
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: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Lafayette, LA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (8 days).
Average UV index in December
Lafayette, LA
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Lafayette, LA
- Average cloud cover in December: 47
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in December
Lafayette, 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).
