December weather forecast
Onemo, VA

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Weather in December

The first month of the winter, December, is still a cool month in Onemo, Virginia, with an average temperature varying between 38.3°F (3.5°C) and 50.2°F (10.1°C).

Temperature

The arrival of December is marked by a minor reduction in average high-temperature, sliding from a mild 57.4°F (14.1°C) in November to a cool 50.2°F (10.1°C). Onemo's average low-temperature in December is measured at a wintry 38.3°F (3.5°C).

Humidity

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

Rainfall

In December, the rain falls for 12.2 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Onemo, Virginia, during the entire year, the rain falls for 165.3 days and collects up to 34.25" (870mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Onemo, during December, snow falls for 1.1 days and regularly aggregates up to 0.51" (13mm) of snow. In Onemo, during the entire year, snow falls for 8.3 days and aggregates up to 4.13" (105mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:57 pm EST.

Sunshine

In Onemo, the average sunshine in December is 5.4h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Onemo in December?

During December, Onemo experiences an average high-temperature of 50.2°F (10.1°C) and a low-temperature of 38.3°F (3.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 95°F (35°C).

What is the most humid month?

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

What is the average humidity in December?

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

How many days does it rain in December?

In Onemo, in December, during 12.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How much does it snow in December?

In Onemo, during December, snow falls for 1.1 days and regularly aggregates up to 0.51" (13mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

What is the average length of the day in December?

In Onemo, the average day length in December is 9h and 38min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:57 pm EST.

How long on average sun shines in December?

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

When is the lowest UV index?

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

How high is the UV index in December?

In Onemo, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Onemo, VA

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

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in December
Onemo, VA

Average pressure in December - Onemo, VA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Onemo, VA

Average wind speed in December - Onemo, VA
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in December
Onemo, VA

Average humidity in December - Onemo, 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 (72%).

Average rainfall in December
Onemo, VA

Average rainfall in December - Onemo, VA
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in December
Onemo, VA

Average rainfall days in December - Onemo, VA
  • Average rainfall days in December: 12.2 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in December
Onemo, VA

Average snowfall in December - Onemo, VA
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Onemo, VA

Average snowfall days in December - Onemo, VA
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Onemo, 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 36min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in December
Onemo, VA

Average sunshine days in December - Onemo, VA
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in December
Onemo, VA

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

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

Average cloud cover in December
Onemo, VA

Average cloud cover in December - Onemo, 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 28).

Average visibility in December
Onemo, VA

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

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

Onemo, Virginia, USA

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