December weather forecast
Petersburg, VA

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Weather in December

December, the final month in Petersburg, Virginia, wraps up the year with the onset of winter. The temperature falls substantially, leading to crisp and cold weather. Snow starts to make an appearance against the shortened daylight backdrop. Alongside the substantial decrease in temperature, December marks a slight but significant rise in snowfall to 0.16" (4mm), setting the tone for the incoming new year.

Temperature

The start of December in Petersburg, Virginia, signals a gentle decrease in the average high-temperature, transitioning from a moderate 57.6°F (14.2°C) in November to a fresh 50.2°F (10.1°C). In the month of December, the temperature generally rests at an average low of 35.6°F (2°C).

Humidity

December is the most humid month in Petersburg, with an average relative humidity of 78%.

Rainfall

In Petersburg, during December, the rain falls for 8.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 109.6 rainfall days, and 9.96" (253mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 0.8 days. Throughout December, 0.16" (4mm) of snow is accumulated. Throughout the year, there are 5.5 snowfall days, and 1.3" (33mm) of snow is accumulated.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:52 pm. On the last day of December, in Petersburg, sunrise is at 7:23 am and sunset at 5:02 pm EST.

Sunshine

February and December, with an average of 5.4h of sunshine, are months with the least sunshine in Petersburg.

UV index

January 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 rays for ordinary individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Petersburg?

Petersburg in December has an average high-temperature of 50.2°F (10.1°C) and an average low-temperature of 35.6°F (2°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 86°F (30°C).

What is the most humid month in Petersburg?

With an average relative humidity of 78%, December is the most humid month in Petersburg, Virginia.

What is the average humidity in December in Petersburg?

In December, the average relative humidity is 78%.

How much does it rain in Petersburg in December?

In Petersburg, in December, during 8.2 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

How much does it snow in Petersburg in December?

In Petersburg, Virginia, in December, snow falls for 0.8 days, with typically accumulated 0.16" (4mm) of snow.

What is the month with the shortest days in Petersburg?

With an average of 9h and 42min of daylight, December has the shortest days of the year in Petersburg, Virginia.

What is the average length of the day in December in Petersburg?

In December, the average day length in Petersburg, Virginia, is 9h and 39min.

When are sunrise and sunset in December in Petersburg?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:52 pm. On the last day of the month, in Petersburg, sunrise is at 7:23 am and sunset at 5:02 pm EST.

What is the month with the least sunshine in Petersburg?

The months with the least sunshine are February and December, with an average of 5.4h of sunshine.

How long on average sun shines in December in Petersburg?

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

What are the months with the lowest UV index in Petersburg?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Petersburg, Virginia.

What is the UV index intensity in December in Petersburg?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from 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
Petersburg, VA

Average temperature in December - Petersburg, VA
  • Average high temperature in December: 50.2°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in December: 35.6°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in December
Petersburg, VA

Average pressure in December - Petersburg, 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
Petersburg, VA

Average wind speed in December - Petersburg, VA
  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Petersburg, VA

Average humidity in December - Petersburg, 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
Petersburg, VA

Average rainfall in December - Petersburg, VA
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is August (1.22").
The driest month (with the least rainfall) is September (0.59").

Average rainfall days in December
Petersburg, VA

Average rainfall days in December - Petersburg, VA
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is May (12.2 days).
The month with the least rainy days is October (5.6 days).

Average snowfall in December
Petersburg, VA

Average snowfall in December - Petersburg, VA
  • Average snowfall in December: 0.16"

The month with the highest snowfall is February (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Petersburg, VA

Average snowfall days in December - Petersburg, VA
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is January (1.8 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
Petersburg, VA

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 5h and 24min).

Average sunshine days in December
Petersburg, VA

Average sunshine days in December - Petersburg, VA
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is May (15.3 days).

Average UV index in December
Petersburg, VA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Petersburg, VA

Average cloud cover in December - Petersburg, 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 31).

Average visibility in December
Petersburg, VA

Average visibility in December - Petersburg, VA
  • Average visibility in December: 6mi

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

Petersburg, Virginia, USA

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