December weather forecast
Shirley, West VA

Weather in December

December, the first month of the winter in Shirley, is still a cold month, with an average temperature varying between 42.1°F (5.6°C) and 30.6°F (-0.8°C).

Temperature

In Shirley, West Virginia, the average high-temperature in December marginally drops from a cool 50.7°F (10.4°C) in November to a cold 42.1°F (5.6°C). In Shirley, the average low-temperature is 30.6°F (-0.8°C).

Humidity

The average relative humidity in December in Shirley is 82%.

Rainfall

In Shirley, it is raining for 12.7 days, with typically 3.39" (86mm) of accumulated precipitation. Throughout the year, there are 186.8 rainfall days, and 38.7" (983mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Shirley, West Virginia, are January through May, October through December. In Shirley, during December, snow falls for 12.3 days and regularly aggregates up to 5.43" (138mm) of snow. In Shirley, during the entire year, snow falls for 58.9 days and aggregates up to 29.41" (747mm) of snow.

Daylight

With an average of 9h and 27min of daylight, December has the shortest days of the year in Shirley, West Virginia.
On the first day of December, sunrise is at 7:23 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:09 pm EST.

Sunshine

The average sunshine in December in Shirley is 3.7h.

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 value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Shirley?

In Shirley, West Virginia, in December, the average high-temperature is 42.1°F (5.6°C), and the average low-temperature is 30.6°F (-0.8°C). in August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in December in Shirley?

In Shirley, West Virginia, the average relative humidity in December is 82%.

How many days does it rain in December in Shirley?

In Shirley, in December, it is raining for 12.7 days, with typically 3.39" (86mm) of accumulated precipitation.

How much does it snow in Shirley in December?

In Shirley, during December, snow falls for 12.3 days and regularly aggregates up to 5.43" (138mm) of snow.

What is the month with the shortest days in Shirley?

The month with the shortest days in Shirley is December, with an average of 9h and 27min of daylight.

How many hours of daylight does Shirley have in December?

The average day length in December in Shirley is 9h and 27min.

When is the sunrise / sunset in December in Shirley?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 5:00 pm. On the last day of the month, in Shirley, West Virginia, sunrise is at 7:42 am and sunset at 5:09 pm EST.

How long on average sun shines in December in Shirley?

In December, the average sunshine duration in Shirley is 3.7h.

When is the lowest UV index in Shirley?

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 reading in December in Shirley?

The average daily maximum UV index in December in Shirley is 2. A UV Index estimate of 2, and below, represents 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
Shirley, West VA

Average temperature in December - Shirley, West VA
  • Average high temperature in December: 42.1°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 (36.1°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (23°F).

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Average pressure in December
Shirley, West VA

Average pressure in December - Shirley, West VA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Shirley, West VA

Average wind speed in December - Shirley, West VA
  • Average wind speed in December: 6.2mph

The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in December
Shirley, West VA

Average humidity in December - Shirley, West VA
  • Average humidity in December: 82%

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%).

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Average rainfall in December
Shirley, West VA

Average rainfall in December - Shirley, West VA
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in December
Shirley, West VA

Average rainfall days in December - Shirley, West VA
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (11.4 days).

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Average snowfall in December
Shirley, West VA

Average snowfall in December - Shirley, West VA
  • Average snowfall in December: 5.43"

The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Shirley, West VA

Average snowfall days in December - Shirley, West VA
  • Average snowfall days in December: 12.3 days

The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Shirley, West VA

Average daylight in December / Average sunshine in December - Shirley, West VA
  • Average daylight in December: 9h and 27min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 27min).

  • Average sunshine in December: 3h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Shirley, West VA

Average sunshine days in December - Shirley, West VA
  • Average sunshine days in December: 9.7 days

The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is January (7.4 days).

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Average UV index in December
Shirley, West VA

Average UV index in December - Shirley, West VA
  • 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, November and December (UV index 2).

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Average cloud cover in December
Shirley, West VA

Average cloud cover in December - Shirley, West VA
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Shirley, West VA

Average visibility in December - Shirley, West VA
  • 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).

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