December weather forecastJay, LA
December
Weather in December
December, the first month of the winter in Jay, is still a comfortable month, with an average temperature fluctuating between 64.2°F (17.9°C) and 51.1°F (10.6°C).Temperature
As November makes way for December, Jay's average high-temperature eases from a pleasant 69.8°F (21°C) to a refreshing 64.2°F (17.9°C). Jay observes an average low-temperature of 51.1°F (10.6°C) during December nights.Humidity
With an average relative humidity of 78%, December is the most humid month.Rainfall
In December, the rain falls for 9.3 days. Throughout December, 1.5" (38mm) of precipitation is accumulated. In Jay, during the entire year, the rain falls for 145.4 days and collects up to 19.13" (486mm) of precipitation.Snowfall
In Jay, snow does not fall in February through December.Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:39 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 5:13 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.3h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 3 suggests this advice:
Heed the precautions - It is counselled to guard against solar damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jay, LA
- Average high temperature in December: 64.2°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in December: 51.1°F
The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).
Average pressure in December
Jay, LA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed in December
Jay, LA
- Average wind speed in December: 8.4mph
The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Jay, LA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Jay, LA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is March (0.75").
Average rainfall days in December
Jay, LA
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (6.4 days).
Average snowfall days in December
Jay, LA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.2 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
Jay, LA
- Average daylight in December: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Jay, LA
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in December
Jay, 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
Jay, LA
- Average cloud cover in December: 44
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in December
Jay, 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).





