December weather forecastGrassy Meadows, WV
December
Weather in December
The first month of the winter, December, is still a cold month in Grassy Meadows, West Virginia, with an average temperature ranging between min 28.8°F (-1.8°C) and max 41.9°F (5.5°C).Temperature
December is marked by a subtle drop in average high-temperatures, transitioning from a fresh 50.4°F (10.2°C) in November to an icy 41.9°F (5.5°C). The average low-temperature of 28.8°F (-1.8°C) is witnessed in Grassy Meadows during December.Humidity
In Grassy Meadows, the average relative humidity in December is 82%.Rainfall
In Grassy Meadows, West Virginia, in December, during 12.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 183.6 rainfall days, and 31.61" (803mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Grassy Meadows, during December, snow falls for 8 days and regularly aggregates up to 3.35" (85mm) of snow. Throughout the year, there are 44.3 snowfall days, and 20.67" (525mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 5:04 pm. On the last day of December, in Grassy Meadows, sunrise is at 7:38 am and sunset at 5:14 pm EST.
Sunshine
In Grassy Meadows, the average sunshine in December is 4.5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grassy Meadows, West Virginia. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grassy Meadows, WV
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in December
Grassy Meadows, 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
Grassy Meadows, WV
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Grassy Meadows, WV
- Average humidity in December: 82%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is June (78%).
Average rainfall in December
Grassy Meadows, WV
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Grassy Meadows, WV
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is May (22.2 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Grassy Meadows, WV
- Average snowfall in December: 3.35"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grassy Meadows, WV
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grassy Meadows, WV
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Grassy Meadows, WV
- Average sunshine days in December: 12 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (7.7 days).
Average UV index in December
Grassy Meadows, 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, November and December (UV index 2).
Average cloud cover in December
Grassy Meadows, WV
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Grassy Meadows, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, July, November and December (5mi).
The months with the lowest visibility are January, February, May, August, September and October (4mi).
