December weather forecast
Killarm, WV

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Weather in December

December, the first month of the winter in Killarm, is also an icy month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 41.7°F (5.4°C).

Temperature

Start of December brings a slight shift in the average high-temperature, dipping a bit from November's cool 50.4°F (10.2°C) to an icy 41.7°F (5.4°C). Killarm observes an average nighttime low-temperature of 29.7°F (-1.3°C) during the month of December.

Humidity

In Killarm, the average relative humidity in December is 83%.

Rainfall

In Killarm, in December, it is raining for 13.5 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 182.4 rainfall days, and 36.1" (917mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Killarm, in December, snow falls for 12.2 days, with typically accumulated 5.28" (134mm) of snow. In Killarm, West Virginia, during the entire year, snow falls for 58.4 days and aggregates up to 29.09" (739mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:07 pm EST.

Sunshine

The average sunshine in December 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 in Killarm. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during December translates into these guidelines:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

Is it cold during December?

Killarm in December has an average high-temperature of 41.7°F (5.4°C) and an average low-temperature of 29.7°F (-1.3°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Killarm?

The average relative humidity in December is 83%.

How much does it rain in December?

In Killarm, in December, it is raining for 13.5 days, with typically 3.19" (81mm) of accumulated precipitation.

How much does it snow in December?

In December, in Killarm, it is snowing for 12.2 days. Throughout December, 5.28" (134mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year in Killarm, with an average of 9h and 24min of daylight.

How many hours of daylight does Killarm have in December?

In Killarm, the average day length in December is 9h and 26min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:07 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.7h.

What are the months with the lowest UV index?

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

How high is the UV index in December in Killarm?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Killarm, WV

Average temperature in December - Killarm, WV
  • Average high temperature in December: 41.7°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in December
Killarm, WV

Average pressure in December - Killarm, WV
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Killarm, WV

Average wind speed in December - Killarm, WV
  • Average wind speed in December: 6.4mph

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 (4.2mph).

Average humidity in December
Killarm, WV

Average humidity in December - Killarm, WV
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

Average rainfall in December
Killarm, WV

Average rainfall in December - Killarm, WV
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in December
Killarm, WV

Average rainfall days in December - Killarm, WV
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in December
Killarm, WV

Average snowfall in December - Killarm, WV
  • Average snowfall in December: 5.28"

The month with the highest snowfall is January (7.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Killarm, WV

Average snowfall days in December - Killarm, WV
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Killarm, WV
  • Average daylight in December: 9h and 2min

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 24min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Killarm, WV

Average sunshine days in December - Killarm, WV
  • Average sunshine days in December: 9.7 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is January (6.8 days).

Average UV index in December
Killarm, WV

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

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

Average cloud cover in December
Killarm, WV

Average cloud cover in December - Killarm, WV
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Killarm, WV

Average visibility in December - Killarm, WV
  • 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).

Killarm, West Virginia, USA

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