December weather forecast
Helena, LA

Share

Weather in December

December, the first month of the winter in Helena, is still a mild month, with an average temperature ranging between min 44.1°F (6.7°C) and max 58.1°F (14.5°C).

Temperature

With the onset of December, the average high-temperature subtly recedes from November's 65.1°F (18.4°C) to a still refreshing 58.1°F (14.5°C). Throughout December nights, Helena experiences a consistent temperature average of 44.1°F (6.7°C).

Humidity

The average relative humidity in December is 80%.

Rainfall

In Helena, in December, it is raining for 12.9 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, in Helena, there are 154.1 rainfall days, and 35.12" (892mm) of precipitation is accumulated.

Snowfall

In Helena, snow does not fall in April through December.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 6:48 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:12 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 4.8h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

An average high-temperature, in December, in Helena, is 58.1°F (14.5°C) and the average low-temperature is 44.1°F (6.7°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is evaluated at 102.2°F (39°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How much does it rain in December?

In Helena, Louisiana, in December, during 12.9 rainfall days, 3.35" (85mm) of precipitation is typically accumulated.

When it does not snow?

In Helena, snow does not fall in April through December.

Does it snow in December?

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

What is the month with the shortest days?

With an average of 10h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Helena have in December?

In Helena, Louisiana, the average day length in December is 10h and 7min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:48 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:12 pm CST.

What is the month with the least sunshine in Helena?

With an average of 4.8h of sunshine, December has the least sunshine of the year in Helena.

How long on average sun shines in December?

In December, the average sunshine duration is 4.8h.

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

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

What is the UV index reading in December?

In Helena, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Helena, LA

Average temperature in December - Helena, LA
  • Average high temperature in December: 58.1°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in December: 44.1°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

Average pressure in December
Helena, LA

Average pressure in December - Helena, LA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Helena, LA

Average wind speed in December - Helena, LA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).

Average humidity in December
Helena, LA

Average humidity in December - Helena, LA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Helena, LA

Average rainfall in December - Helena, LA
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in December
Helena, LA

Average rainfall days in December - Helena, LA
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in December
Helena, LA

Average snowfall in December - Helena, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Helena, LA

Average snowfall days in December - Helena, LA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in December
Helena, LA

Average sunshine days in December - Helena, LA
  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).

Average UV index in December
Helena, LA

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

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

Average cloud cover in December
Helena, LA

Average cloud cover in December - Helena, LA
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 28).

Average visibility in December
Helena, LA

Average visibility in December - Helena, 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).

Helena, Louisiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location