December weather forecast
Cornelia, WV

Share

Weather in December

The first month of the winter, December, is also a wintry month in Cornelia, West Virginia, with an average temperature fluctuating between 30°F (-1.1°C) and 41.9°F (5.5°C).

Temperature

The transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from a fresh 50.2°F (10.1°C) in November to an icy 41.9°F (5.5°C). During the month of December, Cornelia anticipates a mean low-temperature of 30°F (-1.1°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Cornelia, in December, it is raining for 14.5 days, with typically 3.58" (91mm) of accumulated precipitation. In Cornelia, during the entire year, the rain falls for 190.3 days and collects up to 36.93" (938mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Cornelia. In Cornelia, during December, snow falls for 12.2 days and regularly aggregates up to 7.72" (196mm) of snow. In Cornelia, during the entire year, snow falls for 60.4 days and aggregates up to 38.62" (981mm) 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 December, sunrise is at 7:22 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:13 pm EST.

Sunshine

In Cornelia, the average sunshine in December is 4.3h.

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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Cornelia experiences an average high-temperature of 41.9°F (5.5°C) and a low-temperature of 30°F (-1.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is evaluated at 86°F (30°C).

What is the average humidity in December?

In Cornelia, the average relative humidity in December is 82%.

How much does it rain in December?

In Cornelia, during December, the rain falls for 14.5 days and regularly aggregates up to 3.58" (91mm) of precipitation.

How many days does it snow in December?

In Cornelia, in December, snow falls for 12.2 days, with typically accumulated 7.72" (196mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 33min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:13 pm EST.

How long on average sun shines in December in Cornelia?

In Cornelia, the average sunshine duration in December is 4.3h.

What is the month with 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 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
Cornelia, WV

Average temperature in December - Cornelia, WV
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in December
Cornelia, WV

Average pressure in December - Cornelia, WV
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Cornelia, WV

Average wind speed in December - Cornelia, WV
  • Average wind speed in December: 6.7mph

The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Cornelia, WV

Average humidity in December - Cornelia, WV
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are June, July, August and November (78%).

Average rainfall in December
Cornelia, WV

Average rainfall in December - Cornelia, WV
  • Average rainfall in December: 3.58"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in December
Cornelia, WV

Average rainfall days in December - Cornelia, WV
  • Average rainfall days in December: 14.5 days

The month with the highest number of rainy days is May (23.3 days).
The month with the least rainy days is November (12.2 days).

Average snowfall in December
Cornelia, WV

Average snowfall in December - Cornelia, WV
  • Average snowfall in December: 7.72"

The month with the highest snowfall is January (8.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cornelia, WV

Average snowfall days in December - Cornelia, WV
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Cornelia, WV
  • Average daylight in December: 9h and 4min

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 36min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Cornelia, WV

Average sunshine days in December - Cornelia, WV
  • Average sunshine days in December: 8.6 days

The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (6.1 days).

Average UV index in December
Cornelia, WV

Average UV index in December - Cornelia, WV
  • Average UV index in December: 2

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

Average cloud cover in December
Cornelia, WV

Average cloud cover in December - Cornelia, WV
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Cornelia, WV

Average visibility in December - Cornelia, 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).

Cornelia, West Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location