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 arrival of December, Hacker Valley notices a mild change in the average high-temperature, sliding from November's fresh 51.1°F (10.6°C) to an icy 42.3°F (5.7°C). During December, Hacker Valley sees a mean low-temperature of 30.6°F (-0.8°C).Humidity
The average relative humidity in December is 81%.Rainfall
In Hacker Valley, in December, during 14.1 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. Throughout the year, there are 195.1 rainfall days, and 38.98" (990mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Hacker Valley. In Hacker Valley, during December, snow falls for 12 days and regularly aggregates up to 6.46" (164mm) of snow. In Hacker Valley, during the entire year, snow falls for 58.6 days and aggregates up to 34.25" (870mm) 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 Hacker Valley, sunrise is at 7:21 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:10 pm EST.
Sunshine
In Hacker Valley, the average sunshine in December is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hacker Valley, West Virginia. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during December translates into the following guidance:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Hacker Valley in December?
What is the average humidity in December in Hacker Valley?
How many days does it rain in December in Hacker Valley?
How many days does it snow in December in Hacker Valley?
What is the month with the shortest days in Hacker Valley?
What is the average length of the day in December in Hacker Valley?
When are sunrise and sunset in December in Hacker Valley?
How many hours of sunshine does Hacker Valley have in December?
What are the months with the lowest UV index in Hacker Valley?
What is the UV index intensity in December in Hacker Valley?
Average temperature in December
Hacker Valley, WV
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in December: 30.6°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Hacker Valley, WV
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Hacker Valley, WV
- Average wind speed in December: 6.5mph
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 (4.1mph).
Average humidity in December
Hacker Valley, WV
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, August and November (77%).
Average rainfall in December
Hacker Valley, WV
- Average rainfall in December: 3.5"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Hacker Valley, WV
- Average rainfall days in December: 14.1 days
The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in December
Hacker Valley, WV
- Average snowfall in December: 6.46"
The month with the highest snowfall is January (8.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hacker Valley, WV
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hacker Valley, 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 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Hacker Valley, WV
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is October (14.3 days).
The months with the least sunshine days are January and February (7.3 days).
Average UV index in December
Hacker Valley, WV
- Average UV index in December: 2
The months with the highest UV index are 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
Hacker Valley, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Hacker Valley, 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).
Hacker Valley, West Virginia, USA
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