December weather forecast
Sydnor Addition, WV

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Weather in December

The first month of the winter, December, is also a frosty month in Sydnor Addition, West Virginia, with an average temperature fluctuating between 33.1°F (0.6°C) and 45.1°F (7.3°C).

Temperature

The beginning of December brings a slight decrease in the average high-temperature, transitioning from a cool 54°F (12.2°C) in November to a chilly 45.1°F (7.3°C). During the month of December, Sydnor Addition anticipates a mean low-temperature of 33.1°F (0.6°C).

Humidity

In Sydnor Addition, the average relative humidity in December is 80%.

Rainfall

In Sydnor Addition, West Virginia, in December, during 11 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, in Sydnor Addition, there are 163.6 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Sydnor Addition. In December, in Sydnor Addition, it is snowing for 6 days. Throughout December, 3.9" (99mm) of snow is accumulated. Throughout the year, in Sydnor Addition, there are 32.9 snowfall days, and 16.81" (427mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:25 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:20 pm EST.

Sunshine

In Sydnor Addition, the average sunshine in December is 4.5h.

UV index

January, February 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 exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What is the temperature in December in Sydnor Addition?

December temperatures in Sydnor Addition, West Virginia, vary between a high-temperature of 45.1°F (7.3°C) and a low-temperature of 33.1°F (0.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 93.2°F (34°C).

What is the average humidity in December in Sydnor Addition?

In Sydnor Addition, the average relative humidity in December is 80%.

How many days does it rain in December in Sydnor Addition?

In Sydnor Addition, in December, during 11 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

How many days does it snow in December in Sydnor Addition?

In Sydnor Addition, during December, snow falls for 6 days and regularly aggregates up to 3.9" (99mm) of snow.

What is the month with the shortest days in Sydnor Addition?

The month with the shortest days in Sydnor Addition, West Virginia, is December, with an average of 9h and 36min of daylight.

How many hours of daylight does Sydnor Addition have in December?

In December, the average day length in Sydnor Addition is 9h and 37min.

What time are sunrise and sunset in December in Sydnor Addition?

On the first day of December, sunrise is at 7:25 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:20 pm EST.

How long on average sun shines in December in Sydnor Addition?

The average sunshine duration in December in Sydnor Addition, West Virginia, is 4.5h.

What is the month with the lowest UV index in Sydnor Addition?

The months with the lowest UV index in Sydnor Addition, West Virginia, are January, February and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Sydnor Addition?

The average daily maximum UV index in December in Sydnor Addition, West Virginia, is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Sydnor Addition, WV

Average temperature in December - Sydnor Addition, WV
  • Average high temperature in December: 45.1°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure in December
Sydnor Addition, WV

Average pressure in December - Sydnor Addition, 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).

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Average wind speed in December
Sydnor Addition, WV

Average wind speed in December - Sydnor Addition, WV
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in December
Sydnor Addition, WV

Average humidity in December - Sydnor Addition, WV
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are July, August and November (75%).

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Average rainfall in December
Sydnor Addition, WV

Average rainfall in December - Sydnor Addition, WV
  • Average rainfall in December: 2.91"

The wettest months (with the highest rainfall) are February and May (3.27").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in December
Sydnor Addition, WV

Average rainfall days in December - Sydnor Addition, WV
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.1 days).

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Average snowfall in December
Sydnor Addition, WV

Average snowfall in December - Sydnor Addition, WV
  • Average snowfall in December: 3.9"

The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Sydnor Addition, WV

Average snowfall days in December - Sydnor Addition, WV
  • Average snowfall days in December: 6 days

The month with the highest number of snowfall days is January (9.8 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
Sydnor Addition, WV

Average daylight in December / Average sunshine in December - Sydnor Addition, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in December
Sydnor Addition, WV

Average sunshine days in December - Sydnor Addition, WV
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in December
Sydnor Addition, WV

Average UV index in December - Sydnor Addition, WV
  • Average UV index in December: 2

The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in December
Sydnor Addition, WV

Average cloud cover in December - Sydnor Addition, WV
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in December
Sydnor Addition, WV

Average visibility in December - Sydnor Addition, 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).

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Sydnor Addition, West Virginia, USA

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