December weather forecastFish Island, LA

December

Weather in December

The first month of the winter, December, is still a refreshing month in Fish Island, Louisiana, with an average temperature ranging between max 62.4°F (16.9°C) and min 49.5°F (9.7°C).

Temperature

With the commencement of December, Fish Island records a moderate temperature decline, with the average high easing from November's agreeable 68.7°F (20.4°C) to an enjoyable 62.4°F (16.9°C). Fish Island's nights in December experience an average temperature drop to a chilly 49.5°F (9.7°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 80%.

Rainfall

In December, the rain falls for 9.4 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 131.2 rainfall days, and 11.38" (289mm) of precipitation is accumulated.

Snowfall

In Fish Island, snow does not fall in February through December.

Daylight

December has the shortest days of the year, with an average of 10h and 18min of daylight.
On the first day of the month, sunrise is at 6:44 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:01 am and sunset at 5:17 pm CST.

Sunshine

With an average of 5.2h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, an average UV index of 3 transforms into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. When the Sun is at its strongest around midday, find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

During December, Fish Island experiences an average high-temperature of 62.4°F (16.9°C) and a low-temperature of 49.5°F (9.7°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 100.4°F (38°C).

The months with the highest humidity are February and December, with an average relative humidity of 80%.

The average relative humidity in December in Fish Island is 80%.

In December, the rain falls for 9.4 days. Throughout December, 0.75" (19mm) of precipitation is accumulated.

February through December are months without snowfall.

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

The month with the shortest days is December, with an average of 10h and 18min of daylight.

In Fish Island, the average day length in December is 10h and 15min.

In December, on the first day of the month, sunrise is at 6:44 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:17 pm CST.

The month with the least sunshine is December, with an average of 5.2h of sunshine.

The average sunshine duration in December is 5.2h.

With an average maximum UV index of 3, December is the month with the lowest UV index.

The average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Fish Island, LA

  • Average high temperature in December: 62.4°F

The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in December: 49.5°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (46°F).

Average pressure in December
Fish Island, LA

  • Average pressure in December: 30.11"Hg

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

Average wind speed in December
Fish Island, LA

  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are February and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Fish Island, LA

  • Average humidity in December: 80%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Fish Island, LA

  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.35").

Average rainfall days in December
Fish Island, LA

  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in December
Fish Island, LA

  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.04").
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
Fish Island, LA

  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.1 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
Fish Island, LA

  • Average daylight in December: 10h and 18min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in December: 5h and 12min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in December
Fish Island, LA

  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (6.8 days).

Average UV index in December
Fish Island, 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
Fish Island, LA

  • Average cloud cover in December: 46

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in December
Fish Island, 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).