Richmond
Virginia, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Richmond, VA

December, the first month of the winter, in Richmond, is still a chilly month, with average temperature ranging between max 49.1°F (9.5°C) and min 35.1°F (1.7°C).

Temperature

In December, the average high-temperature marginally drops, from a moderate 57°F (13.9°C) in November, to a chilly 49.1°F (9.5°C). In December, in Richmond, the average low-temperature is 35.1°F (1.7°C).

Humidity

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

Rainfall

In Richmond, Virginia, in December, during 10.9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Richmond, during the entire year, the rain falls for 154.5 days and collects up to 30.35" (771mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In December, in Richmond, it is snowing for 1.5 days. Throughout December, 1.65" (42mm) of snow is accumulated. Throughout the year, in Richmond, there are 10.1 snowfall days, and 7.2" (183mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Richmond, with an average of 9.6h of daylight.

Sunshine

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

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Richmond?

In Richmond, in December, the average high-temperature is 49.1°F (9.5°C), and the average low-temperature is 35.1°F (1.7°C).

What is the most humid month in Richmond?

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

What is the average humidity in December in Richmond?

The average relative humidity in December is 78%.

How many days does it rain in December in Richmond?

In Richmond, in December, it is raining for 10.9 days, with typically 2.52" (64mm) of accumulated precipitation.

How much does it snow in Richmond in December?

In December, it is snowing for 1.5 days. Throughout December, 1.65" (42mm) of snow is accumulated.

What is the month with the shortest days in Richmond?

December has the shortest days of the year in Richmond, Virginia, with an average of 9.6h of daylight.

How many hours of daylight does Richmond have in December?

In Richmond, the average length of the day in December is 9.6h.

What is the month with the least sunshine in Richmond?

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

How long on average sun shines in December in Richmond?

The average sunshine in December is 5.1h.

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

Months with the lowest UV index in Richmond are January and December, with an average maximum UV index of 2.

What is the UV index reading in December in Richmond?

In Richmond, Virginia, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Richmond, VA
  • Average high temperature in December: 9.5°C

The warmest month (with the highest average high temperature) is July (32.7°C).
The month with the lowest average high temperature is January (7°C).

  • Average low temperature in December: 1.7°C

The month with the highest average low temperature is July (21.2°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).

Average humidity in December - Richmond, 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 (68%).

Average rainfall in December - Richmond, VA
  • Average rainfall in December: 64mm

The wettest month (with the highest rainfall) is August (73mm).
The driest month (with the least rainfall) is September (44mm).

Average rainfall days in December - Richmond, VA
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in December - Richmond, VA
  • Average snowfall in December: 42mm

The month with the highest snowfall is January (52mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Richmond, VA
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is January (3.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Richmond, VA
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 5.1h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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

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