December weather forecast
Delaplane, VA

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Weather in December

December, the first month of the winter in Delaplane, is still a chilly month, with an average temperature ranging between min 30°F (-1.1°C) and max 43.7°F (6.5°C).

Temperature

Delaplane's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's fresh 52.5°F (11.4°C) to a frosty 43.7°F (6.5°C). Delaplane experiences a consistent average temperature of 30°F (-1.1°C) throughout the nights in December.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Delaplane, during December, the rain falls for 10.9 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Delaplane, during the entire year, the rain falls for 166.6 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 3.8 days. Throughout December, 2.64" (67mm) of snow is accumulated. In Delaplane, during the entire year, snow falls for 23.1 days and aggregates up to 14.45" (367mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:11 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:59 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5h of sunshine.

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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Delaplane, records 43.7°F (6.5°C), while the low-temperature is 30°F (-1.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How much does it rain in December?

In Delaplane, Virginia, in December, it is raining for 10.9 days, with typically 2.4" (61mm) of accumulated precipitation.

How much does it snow in December?

In December, it is snowing for 3.8 days. Throughout December, 2.64" (67mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Delaplane, the average day length in December is 9h and 29min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:11 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:59 pm EST.

What is the month with the least sunshine?

With an average of 5h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

The average sunshine duration in December is 5h.

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?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat 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
Delaplane, VA

Average temperature in December - Delaplane, VA
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Delaplane, VA

Average pressure in December - Delaplane, VA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Delaplane, VA

Average wind speed in December - Delaplane, VA
  • Average wind speed in December: 5.9mph

The windiest month (with the highest average wind speed) is March (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Delaplane, VA

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

The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April, June and July (74%).

Average rainfall in December
Delaplane, VA

Average rainfall in December - Delaplane, VA
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in December
Delaplane, VA

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

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in December
Delaplane, VA

Average snowfall in December - Delaplane, VA
  • Average snowfall in December: 2.64"

The month with the highest snowfall is March (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Delaplane, VA

Average snowfall days in December - Delaplane, VA
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Delaplane, VA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
Delaplane, VA

Average sunshine days in December - Delaplane, VA
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is November (19.1 days).
The months with the least sunshine days are May and July (10.8 days).

Average UV index in December
Delaplane, VA

Average UV index in December - Delaplane, 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
Delaplane, VA

Average cloud cover in December - Delaplane, VA
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Delaplane, VA

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

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

Delaplane, Virginia, USA

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