December weather forecast
Randolph Corner, VA

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Weather in December

December, the first month of the winter in Randolph Corner, is also a frosty month, with an average temperature ranging between min 30.9°F (-0.6°C) and max 43.7°F (6.5°C).

Temperature

The shift from November to December coincides with a small decrease in the average high-temperature, down to a frosty 43.7°F (6.5°C) from a fresh 52.5°F (11.4°C). During December, Randolph Corner records an average temperature of 30.9°F (-0.6°C) at night.

Humidity

The months with the highest humidity are October and December, with an average relative humidity of 78%.

Rainfall

In December, the rain falls for 10.7 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 162.2 rainfall days, and 31.1" (790mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Randolph Corner, during December, snow falls for 3.8 days and regularly aggregates up to 2.68" (68mm) of snow. In Randolph Corner, during the entire year, snow falls for 21.9 days and aggregates up to 14.88" (378mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:11 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:59 pm EST.

Sunshine

January and December, with an average of 5.1h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

How cold does it get in December?

In December, the average high-temperature and low-temperature are 43.7°F (6.5°C) and 30.9°F (-0.6°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 93.2°F (34°C).

What are the most humid months?

October and December, with an average relative humidity of 78%, are most humid months.

What is the average humidity in December?

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

How many days does it rain in December?

In Randolph Corner, in December, during 10.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How many days does it snow in December?

In December, it is snowing for 3.8 days. Throughout December, 2.68" (68mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Randolph Corner have in December?

In Randolph Corner, 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 4:49 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 in Randolph Corner?

The months with the least sunshine are January and December, with an average of 5.1h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5.1h.

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 reading in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe 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
Randolph Corner, VA

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

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 30.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
Randolph Corner, VA

Average pressure in December - Randolph Corner, 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
Randolph Corner, VA

Average wind speed in December - Randolph Corner, VA
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in December
Randolph Corner, VA

Average humidity in December - Randolph Corner, VA
  • Average humidity in December: 78%

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (73%).

Average rainfall in December
Randolph Corner, VA

Average rainfall in December - Randolph Corner, VA
  • Average rainfall in December: 2.6"

The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in December
Randolph Corner, VA

Average rainfall days in December - Randolph Corner, VA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).

Average snowfall in December
Randolph Corner, VA

Average snowfall in December - Randolph Corner, VA
  • Average snowfall in December: 2.68"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Randolph Corner, VA

Average snowfall days in December - Randolph Corner, VA
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Randolph Corner, VA

Average daylight in December / Average sunshine in December - Randolph Corner, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in December
Randolph Corner, VA

Average sunshine days in December - Randolph Corner, VA
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in December
Randolph Corner, VA

Average UV index in December - Randolph Corner, 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
Randolph Corner, VA

Average cloud cover in December - Randolph Corner, 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 30).

Average visibility in December
Randolph Corner, VA

Average visibility in December - Randolph Corner, VA
  • Average visibility in December: 5mi

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

Randolph Corner, Virginia, USA

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