December weather forecastPorter, WV
December
Weather in December
The first month of the winter, December, is also a frosty month in Porter, West Virginia, with an average temperature fluctuating between 43.7°F (6.5°C) and 32.4°F (0.2°C).Temperature
Porter's December weather comes with a decrease in average high-temperatures, moving from a fresh 52.7°F (11.5°C) in November to a frosty 43.7°F (6.5°C). An average nighttime temperature of 32.4°F (0.2°C) is observed during December.Humidity
The average relative humidity in December is 81%.Rainfall
In Porter, in December, it is raining for 13.4 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 180.4 rainfall days, and 34.06" (865mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Porter, in December, snow falls for 9.2 days, with typically accumulated 4.53" (115mm) of snow. In Porter, during the entire year, snow falls for 46.8 days and aggregates up to 22.01" (559mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 5:04 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:14 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Porter, WV
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Porter, 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
Porter, WV
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Porter, WV
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).
Average rainfall in December
Porter, WV
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Porter, WV
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is November (11 days).
Average snowfall in December
Porter, WV
- Average snowfall in December: 4.53"
The month with the highest snowfall is January (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Porter, WV
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Porter, WV
- Average daylight in December: 9h and 30min
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 6min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Porter, WV
- Average sunshine days in December: 11.5 days
The months with the most sunshine days are October and November (16.5 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in December
Porter, 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 and December (UV index 2).
Average cloud cover in December
Porter, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Porter, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
