December weather forecast
Gassaway, WV

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Weather in December

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

Temperature

Gassaway's transition into December involves a gentle shift in temperature, receding from a fresh 51.1°F (10.6°C) in November to a cold 42.3°F (5.7°C). In Gassaway, in December, the average low-temperature is a subzero cold 30.6°F (-0.8°C).

Humidity

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

Rainfall

In Gassaway, during December, the rain falls for 14.1 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Gassaway, during the entire year, the rain falls for 195.1 days and collects up to 38.98" (990mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 12 days. Throughout December, 6.46" (164mm) of snow is accumulated. In Gassaway, during the entire year, snow falls for 58.6 days and aggregates up to 34.25" (870mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:22 am and sunset at 5:02 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:11 pm EST.

Sunshine

In Gassaway, the average sunshine in December is 4.1h.

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 hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

Gassaway in December has an average high-temperature of 42.3°F (5.7°C) and an average low-temperature of 30.6°F (-0.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December 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 much does it snow in December?

In Gassaway, in December, during 12 snowfall days, 6.46" (164mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Gassaway have in December?

The average day length in December is 9h and 31min.

What time are sunrise and sunset in December in Gassaway?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 5:02 pm. On the last day of the month, in Gassaway, sunrise is at 7:40 am and sunset at 5:11 pm EST.

How many hours of sunshine does Gassaway have in December?

In Gassaway, the average sunshine duration in December is 4.1h.

When is the lowest UV index?

January, February, November 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?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from 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
Gassaway, WV

Average temperature in December - Gassaway, 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
Gassaway, WV

Average pressure in December - Gassaway, 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
Gassaway, WV

Average wind speed in December - Gassaway, 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
Gassaway, WV

Average humidity in December - Gassaway, 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
Gassaway, WV

Average rainfall in December - Gassaway, 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
Gassaway, WV

Average rainfall days in December - Gassaway, 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
Gassaway, WV

Average snowfall in December - Gassaway, 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
Gassaway, WV

Average snowfall days in December - Gassaway, 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
Gassaway, WV

Average daylight in December / Average sunshine in December - Gassaway, 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
Gassaway, WV

Average sunshine days in December - Gassaway, 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
Gassaway, WV

Average UV index in December - Gassaway, 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
Gassaway, WV

Average cloud cover in December - Gassaway, 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
Gassaway, WV

Average visibility in December - Gassaway, 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).

Gassaway, West Virginia, USA

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