December weather forecast
Gallagher, WV

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Weather in December

December, the first month of the winter in Gallagher, is still a chilly month, with an average temperature ranging between min 31.5°F (-0.3°C) and max 43.5°F (6.4°C).

Temperature

Gallagher's progression into December involves a gentle drop in the average high-temperature, from a fresh 52.3°F (11.3°C) in November to a chilly 43.5°F (6.4°C). An average low-temperature of 31.5°F (-0.3°C) is anticipated throughout the nights during December.

Humidity

The average relative humidity in December in Gallagher, West Virginia, is 81%.

Rainfall

In Gallagher, West Virginia, in December, it is raining for 14.5 days, with typically 3.31" (84mm) of accumulated precipitation. In Gallagher, West Virginia, during the entire year, the rain falls for 193.3 days and collects up to 35.98" (914mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Gallagher, during December, snow falls for 8.7 days and regularly aggregates up to 4.17" (106mm) of snow. In Gallagher, during the entire year, snow falls for 45.1 days and aggregates up to 22.2" (564mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 5:05 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:15 pm EST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Minimize direct exposure to the Sun during midday when its radiation is at its peak. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The average high-temperature, in December, in Gallagher, is 43.5°F (6.4°C), while the average low-temperature is 31.5°F (-0.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is estimated at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In December, the rain falls for 14.5 days. Throughout December, 3.31" (84mm) of precipitation is accumulated.

How many days does it snow in December?

In Gallagher, in December, snow falls for 8.7 days, with typically accumulated 4.17" (106mm) 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 Gallagher have in December?

The average day length in December is 9h and 34min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 5:05 pm. On the last day of the month, in Gallagher, sunrise is at 7:41 am and sunset at 5:15 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.3h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

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

Average temperature in December - Gallagher, WV
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 31.5°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Gallagher, WV

Average pressure in December - Gallagher, 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
Gallagher, WV

Average wind speed in December - Gallagher, WV
  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in December
Gallagher, WV

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

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

Average rainfall in December
Gallagher, WV

Average rainfall in December - Gallagher, WV
  • Average rainfall in December: 3.31"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in December
Gallagher, WV

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

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (12.1 days).

Average snowfall in December
Gallagher, WV

Average snowfall in December - Gallagher, WV
  • Average snowfall in December: 4.17"

The month with the highest snowfall is January (5.75").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Gallagher, WV

Average snowfall days in December - Gallagher, WV
  • Average snowfall days in December: 8.7 days

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Gallagher, 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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Gallagher, WV

Average sunshine days in December - Gallagher, WV
  • Average sunshine days in December: 10.3 days

The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is February (7.6 days).

Average UV index in December
Gallagher, WV

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

The months with the highest UV index are 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
Gallagher, WV

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

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Gallagher, WV

Average visibility in December - Gallagher, 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).

Gallagher, West Virginia, USA

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