December weather forecast
Fish Island, LA

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Weather in December

The first month of the winter, December, is also an enjoyable month in Fish Island, Louisiana, with an average temperature varying between 49.5°F (9.7°C) and 62.4°F (16.9°C).

Temperature

During the shift to December, a minor reduction in average high-temperature is observed, shifting from a pleasant 68.7°F (20.4°C) in November to a refreshing 62.4°F (16.9°C). In Fish Island, December's nights observe an average temperature dip to a frosty 49.5°F (9.7°C).

Humidity

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

Rainfall

In December, in Fish Island, Louisiana, 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 December, 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.

Sunshine

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

UV index

The month with the lowest UV index in Fish Island, Louisiana, is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 3 during December morphs into the following directions:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What are December temperatures in Fish Island?

The average high-temperature and low-temperature in Fish Island, Louisiana, during December are 62.4°F (16.9°C) and 49.5°F (9.7°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 100.4°F (38°C).

What are the most humid months in Fish Island?

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

What is the average humidity in December in Fish Island?

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

How much does it rain in Fish Island in December?

In Fish Island, during December, the rain falls for 9.4 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When it does not snow in Fish Island?

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

Does it snow in Fish Island in December?

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

What is the month with the shortest days in Fish Island?

December has the shortest days of the year in Fish Island, Louisiana, with an average of 10h and 18min of daylight.

What is the average length of the day in December in Fish Island?

The average day length in December in Fish Island, Louisiana, is 10h and 15min.

When is the sunrise / sunset in December in Fish Island?

On the first day of December in Fish Island, 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.

What is the month with the least sunshine in Fish Island?

The month with the least sunshine in Fish Island, Louisiana, is December, with an average of 5.2h of sunshine.

How many hours of sunshine does Fish Island have in December?

In December, the average sunshine duration in Fish Island, Louisiana, is 5.2h.

What is the month with the lowest UV index in Fish Island?

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

What is the UV index intensity in December in Fish Island?

In December, the average daily maximum UV index in Fish Island, Louisiana, is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Fish Island, LA

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).

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Average pressure in December
Fish Island, LA

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).

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Average wind speed in December
Fish Island, LA

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).

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Average humidity in December
Fish Island, LA

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%).

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Average rainfall in December
Fish Island, LA

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").

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Average rainfall days in December
Fish Island, LA

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).

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Average snowfall in December
Fish Island, LA

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").

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Average snowfall days in December
Fish Island, LA

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).

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Average daylight in December /
Average sunshine in December
Fish Island, LA

Average daylight in December / Average sunshine in December - Fish Island, LA
  • Average daylight in December: 10h and 2min

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 1min

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).

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Average sunshine days in December
Fish Island, LA

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).

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Average UV index in December
Fish Island, LA

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).

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Average cloud cover in December
Fish Island, LA

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).

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Average visibility in December
Fish Island, LA

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).

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Fish Island, Louisiana, USA

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