December weather forecast
Louisa, VA

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Weather in December

December, the first month of the winter in Louisa, is also a frosty month, with an average temperature fluctuating between 32.9°F (0.5°C) and 46.8°F (8.2°C).

Temperature

December indicates a minor shift in the average high-temperature, from November's fresh 54.7°F (12.6°C) to a frosty 46.8°F (8.2°C). Louisa reports an average low-temperature of 32.9°F (0.5°C) during the nights of December.

Humidity

The most humid month is December, with an average relative humidity of 78%.

Rainfall

In Louisa, Virginia, during December, the rain falls for 10.1 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Louisa, Virginia, during the entire year, the rain falls for 154.2 days and collects up to 28.54" (725mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Louisa, in December, during 1.9 snowfall days, 1.5" (38mm) of snow is typically accumulated. In Louisa, during the entire year, snow falls for 15.3 days and aggregates up to 10.39" (264mm) of snow.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:27 am and sunset at 5:02 pm EST.

Sunshine

With an average of 5.4h of sunshine, December has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

The average high-temperature, in December, in Louisa, is 46.8°F (8.2°C), while the average low-temperature is 32.9°F (0.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 96.8°F (36°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 78%.

What is the average humidity in December?

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

How many days does it rain in December?

In Louisa, during December, the rain falls for 10.1 days and regularly aggregates up to 2.6" (66mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 1.9 days. Throughout December, 1.5" (38mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

How many hours of daylight does Louisa have in December?

In December, the average day length is 9h and 35min.

When are sunrise and sunset in December?

On the first day of December in Louisa, sunrise is at 7:09 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:02 pm EST.

What is the month with the least sunshine?

With an average of 5.4h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Louisa, the average sunshine duration in December is 5.4h.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Louisa, VA

Average temperature in December - Louisa, VA
  • Average high temperature in December: 46.8°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in December
Louisa, VA

Average pressure in December - Louisa, VA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Louisa, VA

Average wind speed in December - Louisa, VA
  • Average wind speed in December: 5.3mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in December
Louisa, VA

Average humidity in December - Louisa, VA
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).

Average rainfall in December
Louisa, VA

Average rainfall in December - Louisa, VA
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in December
Louisa, VA

Average rainfall days in December - Louisa, VA
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in December
Louisa, VA

Average snowfall in December - Louisa, VA
  • Average snowfall in December: 1.5"

The month with the highest snowfall is January (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Louisa, VA

Average snowfall days in December - Louisa, VA
  • Average snowfall days in December: 1.9 days

The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Louisa, VA

Average daylight in December / Average sunshine in December - Louisa, VA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Louisa, VA

Average sunshine days in December - Louisa, VA
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in December
Louisa, VA

Average UV index in December - Louisa, VA
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Louisa, VA

Average cloud cover in December - Louisa, VA
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in December
Louisa, VA

Average visibility in December - Louisa, VA
  • Average visibility in December: 5mi

The months with the highest visibility are January, March, April, June, July, August, October and November (6mi).
The months with the lowest visibility are February, May, September and December (5mi).

Louisa, Virginia, USA

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