December weather forecastRivesville, WV

December

Weather in December

The first month of the winter, December, is also an icy month in Rivesville, West Virginia, with temperature in the range of an average high of 41.7°F (5.4°C) and an average low of 29.7°F (-1.3°C).

Temperature

With December's onset, the weather reveals a slight temperature decrease, transitioning from a cool 50.4°F (10.2°C) in November to a wintry 41.7°F (5.4°C). Rivesville's average low-temperature is measured at a subzero cold 29.7°F (-1.3°C) during December.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Rivesville, in December, it is raining for 13.5 days, with typically 3.19" (81mm) of accumulated precipitation. In Rivesville, during the entire year, the rain falls for 182.4 days and collects up to 36.1" (917mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 12.2 days. Throughout December, 5.28" (134mm) of snow is accumulated. In Rivesville, during the entire year, snow falls for 58.4 days and aggregates up to 29.09" (739mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:06 pm EST.

Sunshine

The average sunshine in December is 3.7h.

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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Rivesville, is 41.7°F (5.4°C) and the average low-temperature is 29.7°F (-1.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 87.8°F (31°C).

In December, the average relative humidity in Rivesville is 83%.

In December, the rain falls for 13.5 days. Throughout December, 3.19" (81mm) of precipitation is accumulated.

In Rivesville, in December, during 12.2 snowfall days, 5.28" (134mm) of snow is typically accumulated.

The month with the shortest days is December, with an average of 9h and 24min of daylight.

In December, the average day length is 9h and 26min.

On the first day of December, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:06 pm EST.

The average sunshine duration in December is 3.7h.

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

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Rivesville, WV

  • Average high temperature in December: 41.7°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in December
Rivesville, WV

  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Rivesville, WV

  • Average wind speed in December: 6.4mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Rivesville, WV

  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

Average rainfall in December
Rivesville, WV

  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in December
Rivesville, WV

  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in December
Rivesville, WV

  • Average snowfall in December: 5.28"

The month with the highest snowfall is January (7.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Rivesville, WV

  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Rivesville, WV

  • Average daylight in December: 9h and 24min

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 24min).

  • Average sunshine in December: 3h and 42min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Rivesville, WV

  • Average sunshine days in December: 9.7 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is January (6.8 days).

Average UV index in December
Rivesville, WV

  • Average UV index in December: 2

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Rivesville, WV

  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Rivesville, WV

  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).