December weather forecast
Colchester, VA

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Weather in December

The first month of the winter, December, is still a chilly month in Colchester, Virginia, with temperature in the range of an average low of 33.6°F (0.9°C) and an average high of 46.6°F (8.1°C).

Temperature

December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's cool 54.9°F (12.7°C) to a chilly 46.6°F (8.1°C). Colchester registers a consistent average low-temperature of 33.6°F (0.9°C) during December.

Humidity

The months with the highest humidity are May, October and December, with an average relative humidity of 77%.

Rainfall

In Colchester, in December, during 10.7 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 164.3 rainfall days, and 32.32" (821mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Colchester are January through April and December. December is the first month it typically snows. Throughout December, in the average 2.1 snowfall days, it receives 1.42" (36mm) of snow. In Colchester, during the entire year, snow falls for 14.6 days and aggregates up to 7.8" (198mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Colchester, Virginia.
On the first day of December, sunrise is at 7:08 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:57 pm EST.

Sunshine

February and December, with an average of 5.2h of sunshine, are months with the least sunshine.

UV index

January, 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 rays for the ordinary person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What are the temperatures in Colchester in December?

Colchester in December has an average high-temperature of 46.6°F (8.1°C) and an average low-temperature of 33.6°F (0.9°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 96.8°F (36°C).

What is the most humid month in Colchester?

The months with the highest humidity in Colchester, Virginia, are May, October and December, with an average relative humidity of 77%.

What is the average humidity in December in Colchester?

The average relative humidity in December in Colchester is 77%.

How many days does it rain in December in Colchester?

In December, in Colchester, the rain falls for 10.7 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

When does it start snowing in Colchester?

December is the first month it typically snows in Colchester, Virginia. Throughout December, in the average 2.1 snowfall days, it receives 1.42" (36mm) of snow.

What is the month with the shortest days in Colchester?

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

How many hours of daylight does Colchester have in December?

In Colchester, Virginia, the average day length in December is 9h and 31min.

When is the sunrise / sunset in December in Colchester?

On the first day of December in Colchester, Virginia, sunrise is at 7:08 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:57 pm EST.

What is the month with the least sunshine in Colchester?

The months with the least sunshine in Colchester, Virginia, are February and December, with an average of 5.2h of sunshine.

How long on average sun shines in December in Colchester?

In December, the average sunshine duration in Colchester is 5.2h.

When is the lowest UV index in Colchester?

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

How high is the UV index in December in Colchester?

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

Average temperature in December - Colchester, VA
  • Average high temperature in December: 46.6°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in December: 33.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in December
Colchester, VA

Average pressure in December - Colchester, 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).

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Average wind speed in December
Colchester, VA

Average wind speed in December - Colchester, VA
  • Average wind speed in December: 6.2mph

The windiest months (with the highest average wind speed) are March and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
Colchester, VA

Average humidity in December - Colchester, VA
  • Average humidity in December: 77%

The months with the highest relative humidity are May, October and December (77%).
The months with the lowest relative humidity are April and July (72%).

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Average rainfall in December
Colchester, VA

Average rainfall in December - Colchester, VA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in December
Colchester, VA

Average rainfall days in December - Colchester, VA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in December
Colchester, VA

Average snowfall in December - Colchester, VA
  • Average snowfall in December: 1.42"

The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in December
Colchester, VA

Average snowfall days in December - Colchester, VA
  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

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 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 February and December (Average sunshine: 5h and 12min).

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Average sunshine days in December
Colchester, VA

Average sunshine days in December - Colchester, VA
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.6 days).

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Average UV index in December
Colchester, VA

Average UV index in December - Colchester, 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, November and December (UV index 2).

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Average cloud cover in December
Colchester, VA

Average cloud cover in December - Colchester, VA
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in December
Colchester, VA

Average visibility in December - Colchester, 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).

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Colchester, Virginia, USA

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