December weather forecastCross Keys, LA

December

Weather in December

December, the first month of the winter in Cross Keys, is still a mild month, with an average temperature varying between 44.1°F (6.7°C) and 58.1°F (14.5°C).

Temperature

During the shift to December, a minor reduction in average high-temperature is observed, shifting from an enjoyable 65.1°F (18.4°C) in November to a moderate 58.1°F (14.5°C). The nighttime temperature dips to a chilly 44.1°F (6.7°C) on average during December.

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Cross Keys, during December, the rain falls for 12.9 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Cross Keys, during the entire year, the rain falls for 154.1 days and collects up to 35.12" (892mm) of precipitation.

Snowfall

In Cross Keys, snow does not fall in April through December.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 6:48 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:05 am and sunset at 5:12 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 3 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Cross Keys in December has an average high-temperature of 58.1°F (14.5°C) and an average low-temperature of 44.1°F (6.7°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is evaluated at 102.2°F (39°C).

In Cross Keys, the average relative humidity in December is 80%.

In Cross Keys, Louisiana, during December, the rain falls for 12.9 days and regularly aggregates up to 3.35" (85mm) of precipitation.

In Cross Keys, snow does not fall in April through December.

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

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

The average day length in December is 10h and 7min.

In December, on the first day of the month, sunrise is at 6:48 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:12 pm CST.

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

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

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

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Cross Keys, LA

  • Average high temperature in December: 58.1°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in December: 44.1°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

Average pressure in December
Cross Keys, LA

  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Cross Keys, LA

  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).

Average humidity in December
Cross Keys, 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 (69%).

Average rainfall in December
Cross Keys, LA

  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in December
Cross Keys, LA

  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in December
Cross Keys, LA

  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Cross Keys, LA

  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Cross Keys, LA

  • Average daylight in December: 10h and 6min

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 48min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in December
Cross Keys, LA

  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).

Average UV index in December
Cross Keys, 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
Cross Keys, LA

  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 28).

Average visibility in December
Cross Keys, 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).