Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December introduces a moderate change in Westmoreland's weather, with average high-temperatures falling from November's fresh 53.2°F (11.8°C) to a frosty 44.2°F (6.8°C). In December, the temperature drops to an average of 32.5°F (0.3°C) at night.Humidity
The average relative humidity in December is 80%.Rainfall
In December, the rain falls for 12.9 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. Throughout the year, in Westmoreland, there are 164.7 rainfall days, and 26.26" (667mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Westmoreland, during December, snow falls for 8.2 days and regularly aggregates up to 2.28" (58mm) of snow. Throughout the year, there are 37.9 snowfall days, and 12.44" (316mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:28 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:19 pm EST.
Sunshine
The average sunshine in December in Westmoreland is 4.1h.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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Westmoreland have in December?
When are sunrise and sunset in December in Westmoreland?
How many hours of sunshine does Westmoreland have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Westmoreland, WV
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Westmoreland, 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 (29.97"Hg).
Average wind speed in December
Westmoreland, WV
- Average wind speed in December: 6.3mph
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 (4.3mph).
Average humidity in December
Westmoreland, WV
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Westmoreland, WV
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Westmoreland, WV
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Westmoreland, WV
- Average snowfall in December: 2.28"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Westmoreland, WV
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westmoreland, WV
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Westmoreland, WV
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in December
Westmoreland, WV
- 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 and December (UV index 2).
Average cloud cover in December
Westmoreland, WV
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Westmoreland, WV
- Average visibility in December: 5mi
The months with the highest visibility are April, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, September and December (5mi).
Westmoreland, West Virginia, USA
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