December weather forecast
Hahnville, LA

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Weather in December

The first month of the winter, December, is still a comfortable month in Hahnville, Louisiana, with temperature in the range of an average high of 63.7°F (17.6°C) and an average low of 50.9°F (10.5°C).

Temperature

With the onset of December, Hahnville's average high-temperature slightly adjusts, moderately receding from November's pleasant 69.1°F (20.6°C) to an enjoyable 63.7°F (17.6°C). During December, Hahnville's temperature falls to a steady low-temperature average of 50.9°F (10.5°C).

Humidity

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

Rainfall

In Hahnville, during December, the rain falls for 12.6 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, in Hahnville, there are 180.8 rainfall days, and 33.39" (848mm) of precipitation is accumulated.

Snowfall

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

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 6:40 am and sunset at 5:01 pm. On the last day of December, 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

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 health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

What is the average December temperature?

Hahnville in December has an average high-temperature of 63.7°F (17.6°C) and an average low-temperature of 50.9°F (10.5°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 98.6°F (37°C).

What are the most humid months?

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

What is the average humidity in December?

The average relative humidity in December is 78%.

How many days does it rain in December?

In Hahnville, 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?

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

What is the month with the shortest days?

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

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

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

What is the month with the least sunshine?

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

How many hours of sunshine does Hahnville have in December?

In December, the average sunshine duration is 5.1h.

What is the month with the lowest UV index?

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?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
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
Hahnville, LA

Average temperature in December - Hahnville, 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).

Average pressure in December
Hahnville, LA

Average pressure in December - Hahnville, 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).

Average wind speed in December
Hahnville, LA

Average wind speed in December - Hahnville, 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).

Average humidity in December
Hahnville, LA

Average humidity in December - Hahnville, 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%).

Average rainfall in December
Hahnville, LA

Average rainfall in December - Hahnville, 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").

Average rainfall days in December
Hahnville, LA

Average rainfall days in December - Hahnville, 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).

Average snowfall days in December
Hahnville, LA

Average snowfall days in December - Hahnville, 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).

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

Average daylight in December / Average sunshine in December - Hahnville, 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).

Average sunshine days in December
Hahnville, LA

Average sunshine days in December - Hahnville, 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).

Average UV index in December
Hahnville, LA

Average UV index in December - Hahnville, 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
Hahnville, LA

Average cloud cover in December - Hahnville, 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).

Average visibility in December
Hahnville, LA

Average visibility in December - Hahnville, 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).

Hahnville, Louisiana, USA

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