December weather forecast
Terrytown, LA

Weather in December

The first month of the winter, December, is still a comfortable month in Terrytown, Louisiana, with an average temperature ranging between min 52.5°F (11.4°C) and max 63.5°F (17.5°C).

Temperature

In December, the average high-temperature slightly decreases from an agreeable 68.9°F (20.5°C) in November to a comfortable 63.5°F (17.5°C). In Terrytown, Louisiana, the average low-temperature is 52.5°F (11.4°C).

Humidity

February and December, with an average relative humidity of 77%, are the most humid months in Terrytown.

Rainfall

In December, in Terrytown, the rain falls for 7.8 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in Terrytown, there are 112.1 rainfall days, and 9.37" (238mm) of precipitation is accumulated.

Snowfall

In Terrytown, snow does not fall in February through December.

Daylight

December has the shortest days of the year, with an average of 10h and 16min of daylight.
On the first day of the month, sunrise is at 6:38 am and sunset at 5:00 pm. On the last day of December, in Terrytown, Louisiana, sunrise is at 6:55 am and sunset at 5:10 pm CST.

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year.

UV index

December is the month with the lowest UV index in Terrytown, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in December in Terrytown?

In December, the average high-temperature is 63.5°F (17.5°C), and the average low-temperature is 52.5°F (11.4°C). in September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is evaluated at 98.6°F (37°C).

What is the most humid month in Terrytown?

The months with the highest humidity are February and December, with an average relative humidity of 77%.

What is the average humidity in December in Terrytown?

In December, the average relative humidity is 77%.

How many days does it rain in December in Terrytown?

In Terrytown, Louisiana, in December, during 7.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

When it does not snow in Terrytown?

In Terrytown, snow does not fall in February through December.

Does it snow in Terrytown in December?

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

What is the month with the shortest days in Terrytown?

December has the shortest days of the year, with an average of 10h and 16min of daylight.

How many hours of daylight does Terrytown have in December?

The average day length in December in Terrytown, Louisiana, is 10h and 16min.

When are sunrise and sunset in December in Terrytown?

In December, on the first day of the month, sunrise is at 6:38 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:10 pm CST.

What is the month with the least sunshine in Terrytown?

The month with the least sunshine in Terrytown is December, with an average of 5.1h of sunshine.

How many hours of sunshine does Terrytown have in December?

In December, the average sunshine duration in Terrytown is 5.1h.

When is the lowest UV index in Terrytown?

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

What is the UV index reading in December in Terrytown?

The average daily maximum UV index in December in Terrytown, Louisiana, is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Terrytown, LA

Average temperature in December - Terrytown, LA
  • Average high temperature in December: 63.5°F

The warmest months (with the highest average high temperature) are July and August (89.4°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 52.5°F

The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).

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Average pressure in December
Terrytown, LA

Average pressure in December - Terrytown, 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, August and September (29.97"Hg).

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Average wind speed in December
Terrytown, LA

Average wind speed in December - Terrytown, LA
  • Average wind speed in December: 9.4mph

The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in December
Terrytown, LA

Average humidity in December - Terrytown, LA
  • Average humidity in December: 77%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Terrytown, LA

Average rainfall in December - Terrytown, LA
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are March and April (0.43").

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Average rainfall days in December
Terrytown, LA

Average rainfall days in December - Terrytown, LA
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is November (4.7 days).

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Average snowfall days in December
Terrytown, LA

Average snowfall days in December - Terrytown, 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
Terrytown, LA

Average daylight in December / Average sunshine in December - Terrytown, LA
  • Average daylight in December: 10h and 16min

The month with the longest days is June (Average daylight: 14h and 2min).
The month with the shortest days is December (Average daylight: 10h and 16min).

  • Average sunshine in December: 5h and 6min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Terrytown, LA

Average sunshine days in December - Terrytown, LA
  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is August (8.9 days).

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Average UV index in December
Terrytown, LA

Average UV index in December - Terrytown, LA
  • Average UV index in December: 3

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Terrytown, LA

Average cloud cover in December - Terrytown, LA
  • Average cloud cover in December: 44

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in December
Terrytown, LA

Average visibility in December - Terrytown, 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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