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
During the shift to December, London records a mild decrease in average high-temperature, moving from a cool 52.3°F (11.3°C) in November to a chilly 43.5°F (6.4°C). In the month of December, the nighttime temperature dips to a steady average of 31.5°F (-0.3°C).Humidity
In London, the average relative humidity in December is 81%.Rainfall
In December, the rain falls for 14.5 days. Throughout December, 3.31" (84mm) of precipitation is accumulated. Throughout the year, in London, West Virginia, there are 193.3 rainfall days, and 35.98" (914mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In London, during December, snow falls for 8.7 days and regularly aggregates up to 4.17" (106mm) of snow. Throughout the year, there are 45.1 snowfall days, and 22.2" (564mm) of snow is accumulated.Daylight
December has the shortest days of the year in London, with an average of 9h and 36min of daylight.On the first day of December in London, sunrise is at 7:23 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:15 pm EST.
Sunshine
The average sunshine in December in London is 4.3h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in London. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is December in London?
What is the average humidity in December in London?
How much does it rain in London in December?
How many days does it snow in December in London?
What is the month with the shortest days in London?
What is the average length of the day in December in London?
What time are sunrise and sunset in December in London?
How many hours of sunshine does London have in December?
What is the month with the lowest UV index in London?
What is the UV index intensity in December in London?
Average temperature in December
London, WV
- Average high temperature in December: 43.5°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 (37.9°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
London, 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).
Average wind speed in December
London, WV
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
London, WV
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall in December
London, WV
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
London, WV
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (12.1 days).
Average snowfall in December
London, WV
- Average snowfall in December: 4.17"
The month with the highest snowfall is January (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
London, WV
- Average snowfall days in December: 8.7 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
London, WV
- Average daylight in December: 9h and 4min
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 36min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
London, WV
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in December
London, WV
- Average UV index in December: 2
The months with the highest UV index are 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
London, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
London, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).
London, West Virginia, USA
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