December weather forecast
Jennings, LA

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Weather in December

December marks the onset of the coldest time of the year in Jennings, Louisiana. A perceptible freshness in the air signals the commencement of winter and an end to the dynamic weather cycle. Despite the drop in temperature to a low of 47.8°F (8.8°C), both snowfall and daylight are virtually nonexistent. The serene environment holds a tranquilizing effect while the pronounced sense of cold is as evident as the diminishing sunlight. The city gets cloaked in a wintry veil, encapsulating the essence of the season.

Temperature

As December commences in Jennings, the average high-temperature subtly reduces, transitioning from a pleasant 68.2°F (20.1°C) in November to a comfortable 61.5°F (16.4°C). In the month of December, the average low-temperature usually rests at a frosty 47.8°F (8.8°C).

Humidity

The average relative humidity in December is 79%.

Rainfall

In Jennings, in December, during 12.4 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Jennings, during the entire year, the rain falls for 156.6 days and collects up to 26.34" (669mm) of precipitation.

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 6:49 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:21 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 5.1h 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 the average person.
Note: A maximum UV index of 3 in December translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. To guard against the harmful effects of the Sun, minimize exposure during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

The average high-temperature and low-temperature during December are 61.5°F (16.4°C) and 47.8°F (8.8°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 100.4°F (38°C).

What is the average humidity in December?

The average relative humidity in December is 79%.

How many days does it rain in December?

In Jennings, during December, the rain falls for 12.4 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow?

In Jennings, snow does not fall in February through December.

Does it snow in December?

In Jennings, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 12min of daylight.

How many hours of daylight does Jennings have in December?

In Jennings, the average day length in December is 10h and 14min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:49 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:21 pm CST.

What is the month with the least sunshine?

With an average of 5.1h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Jennings have in December?

In Jennings, the average sunshine duration in December is 5.1h.

When is the lowest UV index?

The month with the lowest UV index in Jennings is December, with an average maximum UV index of 3.

What is the UV index intensity in December in Jennings?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
68.2°F 20.1°C
61.5°F 16.4°C
59°F 15°C
Average low temperature
52.2°F 11.2°C
47.8°F 8.8°C
44.2°F 6.8°C
Average pressure
30.11" 765mmHg
30.11" 765mmHg
30.16" 766mmHg
Average wind speed
8mph 12.9km/h
8.6mph 13.8km/h
8.7mph 14km/h
Average max. wind speed
8.6mph 13.8km/h
9.2mph 14.8km/h
9.3mph 15km/h
Average wind speed gusts
13.2mph 21.2km/h
14.1mph 22.7km/h
14.1mph 22.7km/h
Average humidity
74%
79%
77%
Average rainfall
1.93" 49mm
2.09" 53mm
2.32" 59mm
Average rainfall days
9.3
12.4
10.4
Average snowfall
0" 0mm
0" 0mm
0.12" 3mm
Average snowfall days
0
0
0.3
Average daylight
10h 4min
10h 1min
10h 3min
Average sunshine
5h 5min
5h 1min
5h 3min
Average sunshine days
19.3
16.5
19
Average UV index
4
3
4
Average cloud cover
34%
45%
39%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in December
Jennings, LA

Average temperature in December - Jennings, LA
  • Average high temperature in December: 61.5°F

The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in December: 47.8°F

The months with the highest average low temperature are July and August (75.2°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

Average pressure in December
Jennings, LA

Average pressure in December - Jennings, LA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Jennings, LA

Average wind speed in December - Jennings, LA
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Jennings, LA

Average humidity in December - Jennings, LA
  • Average humidity in December: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Jennings, LA

Average rainfall in December - Jennings, LA
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is February (1.61").

Average rainfall days in December
Jennings, LA

Average rainfall days in December - Jennings, LA
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in December
Jennings, LA

Average snowfall in December - Jennings, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Jennings, LA

Average snowfall days in December - Jennings, LA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.3 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
Jennings, LA

Average daylight in December / Average sunshine in December - Jennings, 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: 5h and 1min

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 6min).

Average sunshine days in December
Jennings, LA

Average sunshine days in December - Jennings, LA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (9.9 days).

Average UV index in December
Jennings, LA

Average UV index in December - Jennings, 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
Jennings, LA

Average cloud cover in December - Jennings, 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 October (Cloud cover 25).

Average visibility in December
Jennings, LA

Average visibility in December - Jennings, 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).

Jennings, Louisiana, USA

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