December weather forecastPalmetto, LA

December

Weather in December

The first month of the winter, December, is still a refreshing month in Palmetto, Louisiana, with an average temperature ranging between min 45.5°F (7.5°C) and max 60.1°F (15.6°C).

Temperature

December indicates a minor shift in the average high-temperature, from November's refreshing 67.3°F (19.6°C) to a moderate 60.1°F (15.6°C). Throughout December, a steady low-temperature average of 45.5°F (7.5°C) is noted.

Humidity

In Palmetto, the average relative humidity in December is 81%.

Rainfall

In Palmetto, during December, the rain falls for 13.9 days and regularly aggregates up to 3.35" (85mm) of precipitation. Throughout the year, there are 182 rainfall days, and 39.09" (993mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. In Palmetto, Louisiana, during the entire year, snow falls for 0.9 days and aggregates up to 0.39" (10mm) of snow.

Daylight

With an average of 10h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:47 am and sunset at 5:05 pm. On the last day of December, in Palmetto, sunrise is at 7:04 am and sunset at 5:16 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 4.9h 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 value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 during December leads to these advisories:
Exercise prevention - Warding off sunburn is urged. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

Frequently asked questions

An average high-temperature, in December, in Palmetto, is 60.1°F (15.6°C) and the average low-temperature is 45.5°F (7.5°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 104°F (40°C).

The average relative humidity in December is 81%.

In Palmetto, in December, it is raining for 13.9 days, with typically 3.35" (85mm) of accumulated precipitation.

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow.

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

In December, the average day length is 10h and 12min.

In December, on the first day of the month, sunrise is at 6:47 am and sunset at 5:05 pm. On the last day of the month, in Palmetto, Louisiana, sunrise is at 7:04 am and sunset at 5:16 pm CST.

The month with the least sunshine is December, with an average of 4.9h of sunshine.

In December, the average sunshine duration is 4.9h.

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

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.
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
Palmetto, LA

  • Average high temperature in December: 60.1°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in December: 45.5°F

The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).

Average pressure in December
Palmetto, LA

  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

Average wind speed in December
Palmetto, LA

  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

Average humidity in December
Palmetto, LA

  • Average humidity in December: 81%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Palmetto, LA

  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is August (4.61").
The driest month (with the least rainfall) is November (2.2").

Average rainfall days in December
Palmetto, LA

  • Average rainfall days in December: 13.9 days

The month with the highest number of rainy days is August (22.5 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in December
Palmetto, LA

  • Average snowfall in December: 0.16"

The month with the highest snowfall is January (0.24").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Palmetto, LA

  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.4 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
Palmetto, LA

  • 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 54min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in December
Palmetto, LA

  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is August (6.5 days).

Average UV index in December
Palmetto, 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
Palmetto, LA

  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in December
Palmetto, LA

  • Average visibility in December: 6mi

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