December weather forecast
Rost, LA

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Weather in December

The first month of the winter, December, is still a refreshing month in Rost, Louisiana, with an average temperature fluctuating between 50.9°F (10.5°C) and 63.7°F (17.6°C).

Temperature

As December commences, the average high-temperature subtly reduces, transitioning from an agreeable 69.1°F (20.6°C) in November to a refreshing 63.7°F (17.6°C). Rost's temperature drops to an average low of 50.9°F (10.5°C) during the nights of December.

Humidity

February and December, with an average relative humidity of 78%, are the most humid months in Rost.

Rainfall

In Rost, during December, the rain falls for 12.6 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Rost, during the entire year, the rain falls for 180.8 days and collects up to 33.39" (848mm) of precipitation.

Snowfall

January and December are months with snowfall in Rost. December is the first month it typically snows. Throughout December, there are 0.1 snowfall days. In Rost, during the entire year, snow falls for 0.3 days.

Daylight

The month with the shortest days in Rost is December, with an average of 10h and 18min of daylight.
On the first day of the month, sunrise is at 6:40 am and sunset at 5:01 pm. On the last day of December, in Rost, Louisiana, sunrise is at 6:57 am and sunset at 5:12 pm CST.

Sunshine

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

UV index

The month with the lowest UV index in Rost is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 3 translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the temperature in December in Rost?

In Rost, in December, the average high-temperature is 63.7°F (17.6°C), and the average low-temperature is 50.9°F (10.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is appraised at 98.6°F (37°C).

What is the most humid month in Rost?

The months with the highest humidity are February and December, with an average relative humidity of 78%.

What is the average humidity in December in Rost?

In Rost, the average relative humidity in December is 78%.

How many days does it rain in December in Rost?

In Rost, during December, the rain falls for 12.6 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When does it start to snow in Rost?

December is the first month it typically snows in Rost. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Rost?

With an average of 10h and 18min of daylight, December has the shortest days of the year.

How many hours of daylight does Rost have in December?

In Rost, Louisiana, the average day length in December is 10h and 16min.

What time are sunrise and sunset in December in Rost?

On the first day of December, sunrise is at 6:40 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 5:12 pm CST.

What is the month with the least sunshine in Rost?

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

How long on average sun shines in December in Rost?

The average sunshine duration in December in Rost, Louisiana, is 5.1h.

When is the lowest UV index in Rost?

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

How high is the UV index in December in Rost?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Rost, LA

Average temperature in December - Rost, LA
  • Average high temperature in December: 63.7°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 50.9°F

The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).

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Average pressure in December
Rost, LA

Average pressure in December - Rost, 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
Rost, LA

Average wind speed in December - Rost, LA
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in December
Rost, LA

Average humidity in December - Rost, LA
  • Average humidity in December: 78%

The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Rost, LA

Average rainfall in December - Rost, LA
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is July (5.39").
The driest month (with the least rainfall) is November (1.5").

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Average rainfall days in December
Rost, LA

Average rainfall days in December - Rost, LA
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is August (23.7 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall days in December
Rost, LA

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

The month with the highest number of snowfall days is January (0.2 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
Rost, LA

Average daylight in December / Average sunshine in December - Rost, 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 6min).

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Average sunshine days in December
Rost, LA

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

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is August (4.8 days).

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Average UV index in December
Rost, LA

Average UV index in December - Rost, 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
Rost, LA

Average cloud cover in December - Rost, LA
  • Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in December
Rost, LA

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

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