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
December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's fresh 52.2°F (11.2°C) to a chilly 43.3°F (6.3°C). An average nighttime temperature of 30.7°F (-0.7°C) is witnessed throughout December.Humidity
May, October and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Mechanicstown, in December, it is raining for 10.8 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 162.1 rainfall days, and 30.59" (777mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 4.3 days. Throughout December, 2.8" (71mm) of snow is accumulated. Throughout the year, there are 23.9 snowfall days, and 15.55" (395mm) 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 the month, sunrise is at 7:12 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:58 pm EST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 5.1h of sunshine.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 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. Minimize direct exposure to the Sun during midday when its radiation is at its peak. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the most humid month?
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?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What are the months with the least sunshine in Mechanicstown?
How many hours of sunshine does Mechanicstown have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Mechanicstown, WV
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Mechanicstown, WV
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Mechanicstown, WV
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Mechanicstown, WV
- Average humidity in December: 78%
The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Mechanicstown, WV
- Average rainfall in December: 2.52"
The wettest months (with the highest rainfall) are May, July and August (3.15").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Mechanicstown, WV
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in December
Mechanicstown, WV
- Average snowfall in December: 2.8"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Mechanicstown, WV
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Mechanicstown, WV
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Mechanicstown, WV
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Mechanicstown, 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, November and December (UV index 2).
Average cloud cover in December
Mechanicstown, WV
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Mechanicstown, WV
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, May, September and October (5mi).
Mechanicstown, West Virginia, USA
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