December weather forecastJennings, MS

December

Weather in December

The first month of the winter, December, is still a refreshing month in Jennings, Mississippi, with an average temperature varying between 44.1°F (6.7°C) and 59.4°F (15.2°C).

Temperature

The beginning of December brings a slight decrease in the average high-temperature, transitioning from a comfortable 66.4°F (19.1°C) in November to a mild 59.4°F (15.2°C). December generally records an average low-temperature of 44.1°F (6.7°C).

Humidity

February and December, with an average relative humidity of 82%, are the most humid months.

Rainfall

In Jennings, in December, during 11.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, in Jennings, there are 159.9 rainfall days, and 22.83" (580mm) of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall. The months with the most snowfall are January and December, with an average 0.2" (5mm) of accumulated snow.

Daylight

The month with the shortest days is December, with an average of 10h and 12min of daylight.
On the first day of the month, sunrise is at 6:42 am and sunset at 4:58 pm. On the last day of December, sunrise is at 6:59 am and sunset at 5:09 pm CST.

Sunshine

The months with the least sunshine are February and December, with an average of 4.8h of sunshine.

UV index

The months with the lowest UV index in Jennings are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 3 during December leads to these advisories:
Be vigilant - Preventing sunburn is recommended. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Jennings, is 59.4°F (15.2°C) and the average low-temperature is 44.1°F (6.7°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in September is appraised at 102.2°F (39°C).

The months with the highest humidity are February and December, with an average relative humidity of 82%.

In December, the average relative humidity is 82%.

In Jennings, during December, the rain falls for 11.5 days and regularly aggregates up to 1.77" (45mm) of precipitation.

The months with the most snowfall are January and December, with an average 0.2" (5mm) of accumulated snow.

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.2" (5mm) of snow.

The month with the shortest days is December, with an average of 10h and 12min of daylight.

The average day length in December is 10h and 10min.

On the first day of December, sunrise is at 6:42 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:09 pm CST.

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

The average sunshine duration in December is 4.8h.

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

The average daily maximum UV index in December in Jennings is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

66.4°F

59.4°F

56.7°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.6mph

7mph

7.1mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

20.8

16.7

19.1

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Jennings, MS

Average high temperature in December: 59.4°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.7°F).

Average low temperature in December: 44.1°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).

Average pressure in December
Jennings, MS

Average pressure in December: 30.14"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
Jennings, MS

Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in December
Jennings, MS

Average humidity in December: 82%

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Jennings, MS

Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is November (1.1").

Average rainfall days in December
Jennings, MS

Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in December
Jennings, MS

Average snowfall in December: 0.2"

The months with the highest snowfall are January and December (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Jennings, MS

Average snowfall days in December: 0.3 days

The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Jennings, MS

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: 4h and 48min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in December
Jennings, MS

Average sunshine days in December: 16.7 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (8 days).

Average UV index in December
Jennings, MS

Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December
Jennings, MS

Average cloud cover in December: 51

The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in December
Jennings, MS

Average visibility in December: 5mi

The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).