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
With the commencement of December, May records a moderate temperature decline, with the average high easing from November's frosty 48.4°F (9.1°C) to a wintry 39.9°F (4.4°C). In December, the temperature drops to an average of 27.3°F (-2.6°C) at night.Humidity
The average relative humidity in December is 83%.Rainfall
In May, West Virginia, during December, the rain falls for 14.9 days and regularly aggregates up to 3.54" (90mm) of precipitation. Throughout the year, in May, there are 197.4 rainfall days, and 37.87" (962mm) of precipitation is accumulated.Snowfall
Months with snowfall in May are January through May, October through December. In May, during December, snow falls for 13.2 days and regularly aggregates up to 7.01" (178mm) of snow. In May, during the entire year, snow falls for 67 days and aggregates up to 41.3" (1049mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December in May, sunrise is at 7:18 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:08 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in May. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold does it get in May in December?
What is the average humidity in December in May?
How many days does it rain in December in May?
How much does it snow in May in December?
What is the month with the shortest days in May?
What is the average length of the day in December in May?
When is the sunrise / sunset in December in May?
How long on average sun shines in December in May?
What are the months with the lowest UV index in May?
What is the UV index reading in December in May?
Average temperature in December
May, WV
- Average high temperature in December: 39.9°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
May, WV
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
May, WV
- Average wind speed in December: 7.2mph
The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
May, WV
- Average humidity in December: 83%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are June, July, August and November (79%).
Average rainfall in December
May, WV
- Average rainfall in December: 3.54"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
May, WV
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in December
May, WV
- Average snowfall in December: 7.01"
The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
May, WV
- Average snowfall days in December: 13.2 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
May, 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: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
May, WV
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is October (12.7 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in December
May, WV
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
May, WV
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
May, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
May, West Virginia, USA
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