December weather forecast
Kelly, LA

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Weather in December

The first month of the winter, December, is still a refreshing month in Kelly, Louisiana, with an average temperature varying between 57.6°F (14.2°C) and 42.8°F (6°C).

Temperature

The shift from November to December includes a small decrease in the average high-temperature, from a comfortable 65.1°F (18.4°C) to a still refreshing 57.6°F (14.2°C). In December, Kelly experiences an average nighttime temperature of 42.8°F (6°C).

Humidity

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

Rainfall

In Kelly, in December, during 13.4 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Kelly, during the entire year, the rain falls for 172.1 days and collects up to 39.45" (1002mm) of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows in Kelly. Throughout December, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 2.4 snowfall days, and 0.91" (23mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 6:51 am and sunset at 5:04 pm. On the last day of December, sunrise is at 7:09 am and sunset at 5:15 pm CST.

Sunshine

December has the least sunshine of the year, with an average of 4.8h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 3 during December translates into the following guidance:
Heed the precautions - Suggestions to avoid sunburn are made. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures in Kelly?

December temperatures vary between a high-temperature of 57.6°F (14.2°C) and a low-temperature of 42.8°F (6°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 102.2°F (39°C).

What is the most humid month in Kelly?

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

What is the average humidity in December in Kelly?

In December, the average relative humidity is 82%.

How much does it rain in December?

In December, in Kelly, the rain falls for 13.4 days. Throughout December, 3.39" (86mm) of precipitation is accumulated.

When does it start to snow in Kelly?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year in Kelly, with an average of 10h and 6min of daylight.

How many hours of daylight does Kelly have in December?

In Kelly, the average day length in December is 10h and 6min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:51 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:15 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 4.8h of sunshine.

How many hours of sunshine does Kelly have in December?

In Kelly, the average sunshine duration in December is 4.8h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Kelly, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kelly, LA

Average temperature in December - Kelly, LA
  • Average high temperature in December: 57.6°F

The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (54.9°F).

  • Average low temperature in December: 42.8°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).

Average pressure in December
Kelly, LA

Average pressure in December - Kelly, LA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Kelly, LA

Average wind speed in December - Kelly, LA
  • Average wind speed in December: 6.4mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

Average humidity in December
Kelly, LA

Average humidity in December - Kelly, LA
  • 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 (71%).

Average rainfall in December
Kelly, LA

Average rainfall in December - Kelly, LA
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is November (2.4").

Average rainfall days in December
Kelly, LA

Average rainfall days in December - Kelly, LA
  • Average rainfall days in December: 13.4 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in December
Kelly, LA

Average snowfall in December - Kelly, LA
  • Average snowfall in December: 0.12"

The months with the highest snowfall are January and February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Kelly, LA

Average snowfall days in December - Kelly, LA
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is January (1.1 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
Kelly, LA

Average daylight in December / Average sunshine in December - Kelly, LA
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in December
Kelly, LA

Average sunshine days in December - Kelly, LA
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is August (9.8 days).

Average UV index in December
Kelly, LA

Average UV index in December - Kelly, 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
Kelly, LA

Average cloud cover in December - Kelly, LA
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in December
Kelly, LA

Average visibility in December - Kelly, LA
  • Average visibility in December: 5mi

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

Kelly, Louisiana, USA

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