December weather forecast
Romeville, LA

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Weather in December

December, the first month of the winter in Romeville, is still a comfortable month, with an average temperature ranging between max 63°F (17.2°C) and min 49.5°F (9.7°C).

Temperature

Romeville's progression into December involves a minor drop in the average high-temperature, slightly receding from an agreeable 68.9°F (20.5°C) in November to an enjoyable 63°F (17.2°C). December brings Romeville a consistent average low-temperature of 49.5°F (9.7°C).

Humidity

The months with the highest humidity in Romeville are February, July through September and December, with an average relative humidity of 79%.

Rainfall

In Romeville, Louisiana, in December, during 12.8 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 172.6 rainfall days, and 30.2" (767mm) of precipitation is accumulated.

Snowfall

In Romeville, Louisiana, snow does not fall in February through December.

Daylight

The month with the shortest days is December, with an average of 10h and 12min of daylight.
On the first day of December, sunrise is at 6:42 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:14 pm CST.

Sunshine

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

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Romeville in December?

The average high-temperature and low-temperature in Romeville during December are 63°F (17.2°C) and 49.5°F (9.7°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is calculated to be 102.2°F (39°C).

What are the most humid months in Romeville?

The months with the highest humidity in Romeville, Louisiana, are February, July through September and December, with an average relative humidity of 79%.

What is the average humidity in December in Romeville?

The average relative humidity in December in Romeville is 79%.

How much does it rain in Romeville in December?

In Romeville, Louisiana, in December, it is raining for 12.8 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Romeville?

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

Does it snow in Romeville in December?

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

What is the month with the shortest days in Romeville?

The month with the shortest days in Romeville, Louisiana, is December, with an average of 10h and 12min of daylight.

How many hours of daylight does Romeville have in December?

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

When are sunrise and sunset in December in Romeville?

In December, on the first day of the month, sunrise is at 6:42 am and sunset at 5:03 pm. On the last day of the month, in Romeville, Louisiana, sunrise is at 6:59 am and sunset at 5:14 pm CST.

What is the month with the least sunshine in Romeville?

December has the least sunshine of the year in Romeville, Louisiana, with an average of 5.1h of sunshine.

How many hours of sunshine does Romeville have in December?

The average sunshine duration in December in Romeville is 5.1h.

What is the month with the lowest UV index in Romeville?

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

What is the UV index reading in December in Romeville?

In December, the average daily maximum UV index 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Romeville, LA

Average temperature in December - Romeville, LA
  • Average high temperature in December: 63°F

The warmest months (with the highest average high temperature) are July and August (89.8°F).
The month with the lowest average high temperature is January (60.3°F).

  • Average low temperature in December: 49.5°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

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Average pressure in December
Romeville, LA

Average pressure in December - Romeville, 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
Romeville, LA

Average wind speed in December - Romeville, LA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in December
Romeville, LA

Average humidity in December - Romeville, LA
  • Average humidity in December: 79%

The months with the highest relative humidity are February, July, August, September and December (79%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Romeville, LA

Average rainfall in December - Romeville, LA
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is July (4.88").
The driest month (with the least rainfall) is November (1.26").

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Average rainfall days in December
Romeville, LA

Average rainfall days in December - Romeville, LA
  • Average rainfall days in December: 12.8 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8 days).

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Average snowfall in December
Romeville, LA

Average snowfall in December - Romeville, 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
Romeville, LA

Average snowfall days in December - Romeville, LA
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Romeville, LA

Average daylight in December / Average sunshine in December - Romeville, LA
  • Average daylight in December: 10h and 1min

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: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Romeville, LA

Average sunshine days in December - Romeville, LA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (6.4 days).

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Average UV index in December
Romeville, LA

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

The months with the highest UV index are 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
Romeville, LA

Average cloud cover in December - Romeville, 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 25).

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Average visibility in December
Romeville, LA

Average visibility in December - Romeville, 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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Romeville, Louisiana, USA

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