December weather forecast
Grangeville, WV

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Weather in December

The first month of the winter, December, is also an icy month in Grangeville, West Virginia, with an average temperature varying between 41.5°F (5.3°C) and 29.3°F (-1.5°C).

Temperature

The arrival of December corresponds with a shift in temperature, down from a cool 50.5°F (10.3°C) in November to a wintry 41.5°F (5.3°C). Throughout December, the temperature falls to an average low of 29.3°F (-1.5°C).

Humidity

In Grangeville, the average relative humidity in December is 82%.

Rainfall

In Grangeville, during December, the rain falls for 13.1 days and regularly aggregates up to 3.35" (85mm) of precipitation. Throughout the year, there are 188.6 rainfall days, and 39.17" (995mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Grangeville, during December, snow falls for 10.7 days and regularly aggregates up to 4.29" (109mm) of snow. In Grangeville, during the entire year, snow falls for 52.1 days and aggregates up to 24.21" (615mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:08 pm EST.

Sunshine

The average sunshine in December is 3.5h.

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 exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature, in December, in Grangeville, is 41.5°F (5.3°C), while the low-temperature averages to 29.3°F (-1.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 82%.

How many days does it rain in December?

In December, the rain falls for 13.1 days. Throughout December, 3.35" (85mm) of precipitation is accumulated.

How much does it snow in December?

In Grangeville, in December, during 10.7 snowfall days, 4.29" (109mm) 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 24min of daylight.

How many hours of daylight does Grangeville have in December?

The average day length in December in Grangeville is 9h and 26min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:08 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.5h.

When is 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 December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Grangeville, WV

Average temperature in December - Grangeville, WV
  • Average high temperature in December: 41.5°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in December
Grangeville, WV

Average pressure in December - Grangeville, 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
Grangeville, WV

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

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
Grangeville, WV

Average humidity in December - Grangeville, WV
  • Average humidity in December: 82%

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
Grangeville, WV

Average rainfall in December - Grangeville, WV
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (2.24").

Average rainfall days in December
Grangeville, WV

Average rainfall days in December - Grangeville, WV
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in December
Grangeville, WV

Average snowfall in December - Grangeville, WV
  • Average snowfall in December: 4.29"

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Grangeville, WV

Average snowfall days in December - Grangeville, WV
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Grangeville, 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 3min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in December
Grangeville, WV

Average sunshine days in December - Grangeville, WV
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.8 days).

Average UV index in December
Grangeville, WV

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

The months with the highest UV index are May 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
Grangeville, WV

Average cloud cover in December - Grangeville, WV
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in December
Grangeville, WV

Average visibility in December - Grangeville, 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).

Grangeville, West Virginia, USA

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