December weather forecast
Mount Gay, WV

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Weather in December

The first month of the winter, December, is still a chilly month in Mount Gay, West Virginia, with an average temperature fluctuating between 45°F (7.2°C) and 32.7°F (0.4°C).

Temperature

December heralds a minor drop in average high-temperature, sliding from November's fresh 53.2°F (11.8°C) to a chilly 45°F (7.2°C). During December, Mount Gay's temperature falls to a steady low-temperature average of 32.7°F (0.4°C).

Humidity

In Mount Gay, the average relative humidity in December is 81%.

Rainfall

In Mount Gay, in December, during 13.7 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, there are 181.3 rainfall days, and 34.37" (873mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Mount Gay, during December, snow falls for 7.6 days and regularly aggregates up to 3.58" (91mm) of snow. Throughout the year, there are 38.9 snowfall days, and 17.48" (444mm) of snow is accumulated.

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 7:25 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:19 pm EST.

Sunshine

The average sunshine in December in Mount Gay is 4.3h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

The high-temperature, in December, in Mount Gay, is 45°F (7.2°C), while the low-temperature averages to 32.7°F (0.4°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is calculated to be 95°F (35°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How many days does it rain in December?

In Mount Gay, in December, it is raining for 13.7 days, with typically 3.23" (82mm) of accumulated precipitation.

How much does it snow in December?

In Mount Gay, during December, snow falls for 7.6 days and regularly aggregates up to 3.58" (91mm) 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.

How many hours of daylight does Mount Gay have in December?

The average day length in December is 9h and 36min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:25 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:19 pm EST.

How long on average sun shines in December in Mount Gay?

In December, the average sunshine duration is 4.3h.

When is the lowest UV index?

January, February 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 December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
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
Mount Gay, WV

Average temperature in December - Mount Gay, WV
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 32.7°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in December
Mount Gay, WV

Average pressure in December - Mount Gay, 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
Mount Gay, WV

Average wind speed in December - Mount Gay, WV
  • Average wind speed in December: 6mph

The windiest months (with the highest average wind speed) are January, February and April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in December
Mount Gay, WV

Average humidity in December - Mount Gay, WV
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, June, July, August and November (76%).

Average rainfall in December
Mount Gay, WV

Average rainfall in December - Mount Gay, WV
  • Average rainfall in December: 3.23"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in December
Mount Gay, WV

Average rainfall days in December - Mount Gay, WV
  • Average rainfall days in December: 13.7 days

The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in December
Mount Gay, WV

Average snowfall in December - Mount Gay, WV
  • Average snowfall in December: 3.58"

The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mount Gay, WV

Average snowfall days in December - Mount Gay, WV
  • Average snowfall days in December: 7.6 days

The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mount Gay, WV

Average daylight in December / Average sunshine in December - Mount Gay, WV
  • 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: 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
Mount Gay, WV

Average sunshine days in December - Mount Gay, WV
  • Average sunshine days in December: 11.5 days

The months with the most sunshine days are October and November (17 days).
The month with the least sunshine days is February (8.8 days).

Average UV index in December
Mount Gay, WV

Average UV index in December - Mount Gay, WV
  • 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, February and December (UV index 2).

Average cloud cover in December
Mount Gay, WV

Average cloud cover in December - Mount Gay, WV
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Mount Gay, WV

Average visibility in December - Mount Gay, WV
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Mount Gay, West Virginia, USA

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