December weather forecastPorterwood, WV
December
Weather in December
December, the first month of the winter in Porterwood, is also an icy month, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 27.3°F (-2.6°C).Temperature
Porterwood's December weather shows a modest shift in high-temperatures, falling from November's frosty 47.5°F (8.6°C) to an icy 39.2°F (4°C). In December, Porterwood reports a consistent average low-temperature of 27.3°F (-2.6°C) during the nights.Humidity
The average relative humidity in December is 83%.Rainfall
In Porterwood, in December, during 14.5 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. Throughout the year, there are 194.8 rainfall days, and 37.2" (945mm) of precipitation is accumulated.Snowfall
Months with snowfall in Porterwood are January through May, October through December. In Porterwood, in December, during 12.8 snowfall days, 6.89" (175mm) of snow is typically accumulated. Throughout the year, there are 63.8 snowfall days, and 38.74" (984mm) 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 7:19 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:37 am and sunset at 5:06 pm EST.
Sunshine
In Porterwood, the average sunshine in December is 3.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Porterwood, WV
- Average high temperature in December: 39.2°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 (33.6°F).
- Average low temperature in December: 27.3°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 (19.9°F).
Average pressure in December
Porterwood, WV
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Porterwood, WV
- Average wind speed in December: 7.5mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Porterwood, WV
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are June, July and November (79%).
Average rainfall in December
Porterwood, WV
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Porterwood, WV
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is February (11.2 days).
Average snowfall in December
Porterwood, WV
- Average snowfall in December: 6.89"
The month with the highest snowfall is January (8.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Porterwood, WV
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Porterwood, WV
- Average daylight in December: 9h and 30min
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: 3h and 54min
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 30min).
Average sunshine days in December
Porterwood, WV
- Average sunshine days in December: 8.2 days
The months with the most sunshine days are October and November (13.3 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in December
Porterwood, 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
Porterwood, WV
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in December
Porterwood, 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).
