December weather forecast
Gregory, WV

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Weather in December

The first month of the winter, December, is also a wintry month in Gregory, West Virginia, with an average temperature fluctuating between 30.6°F (-0.8°C) and 42.3°F (5.7°C).

Temperature

In December, the meteorological conditions change slightly, with the average high-temperature moving from a fresh 51.1°F (10.6°C) in November to a wintry 42.3°F (5.7°C). Gregory cools down to an average low-temperature of 30.6°F (-0.8°C) throughout the month of December.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Gregory, during December, the rain falls for 14.1 days and regularly aggregates up to 3.5" (89mm) of precipitation. Throughout the year, there are 195.1 rainfall days, and 38.98" (990mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Gregory, in December, snow falls for 12 days, with typically accumulated 6.46" (164mm) of snow. In Gregory, during the entire year, snow falls for 58.6 days and aggregates up to 34.25" (870mm) 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 7:21 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:10 pm EST.

Sunshine

In December, the average sunshine is 4.1h.

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 threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature, in December, in Gregory, is 42.3°F (5.7°C), while the low-temperature averages to 30.6°F (-0.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December in Gregory is 81%.

How much does it rain in December?

In December, the rain falls for 14.1 days. Throughout December, 3.5" (89mm) of precipitation is accumulated.

How many days does it snow in December?

In December, it is snowing for 12 days. Throughout December, 6.46" (164mm) 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 Gregory have in December?

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

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:21 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:10 pm EST.

How many hours of sunshine does Gregory have in December?

In December, the average sunshine duration is 4.1h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Gregory, WV

Average temperature in December - Gregory, WV
  • Average high temperature in December: 42.3°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in December
Gregory, WV

Average pressure in December - Gregory, WV
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in December
Gregory, WV

Average wind speed in December - Gregory, WV
  • Average wind speed in December: 6.5mph

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 (4.1mph).

Average humidity in December
Gregory, WV

Average humidity in December - Gregory, WV
  • Average humidity in December: 81%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, August and November (77%).

Average rainfall in December
Gregory, WV

Average rainfall in December - Gregory, WV
  • Average rainfall in December: 3.5"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in December
Gregory, WV

Average rainfall days in December - Gregory, WV
  • Average rainfall days in December: 14.1 days

The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is February (12.9 days).

Average snowfall in December
Gregory, WV

Average snowfall in December - Gregory, WV
  • Average snowfall in December: 6.46"

The month with the highest snowfall is January (8.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Gregory, WV

Average snowfall days in December - Gregory, WV
  • Average snowfall days in December: 12 days

The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Gregory, WV
  • 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: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Gregory, WV

Average sunshine days in December - Gregory, WV
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is October (14.3 days).
The months with the least sunshine days are January and February (7.3 days).

Average UV index in December
Gregory, WV

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

The months with the highest UV index are 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
Gregory, WV

Average cloud cover in December - Gregory, 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 33).

Average visibility in December
Gregory, WV

Average visibility in December - Gregory, WV
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).

Gregory, West Virginia, USA

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