December weather forecastHenderson, WV
December
Weather in December
Conclusion of the year in Henderson welcomes the re-emergence of the winter weather prominent in the early months. The average temperature records a significant drop, indicating the beginning of the cold season. Warm clothing becomes a necessity as residents gear up to embrace the chilly days and freezing nights. It's common to witness the first snowflakes of the season during December, creating a festive holiday atmosphere. With the temperature plunging to a low of 43.2°F (6.2°C), December characterizes winter's full bloom in Henderson.Temperature
As December begins, there is a decrease in the average high-temperature, falling from a fresh 52.5°F (11.4°C) in November to a chilly 43.2°F (6.2°C). In December, Henderson experiences an average nighttime temperature of 31.3°F (-0.4°C).Humidity
The average relative humidity in December is 81%.Rainfall
In Henderson, in December, during 13 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 169.2 rainfall days, and 27.56" (700mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Henderson, during December, snow falls for 7.2 days and regularly aggregates up to 1.38" (35mm) of snow. In Henderson, during the entire year, snow falls for 35.5 days and aggregates up to 7.2" (183mm) 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, sunrise is at 7:28 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:16 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. 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
Average temperature in December
Henderson, WV
- Average high temperature in December: 43.2°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: 31.3°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 (24.3°F).
Average pressure in December
Henderson, WV
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Henderson, WV
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Henderson, WV
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Henderson, WV
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Henderson, WV
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Henderson, WV
- Average snowfall in December: 1.38"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Henderson, WV
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Henderson, 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 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Henderson, WV
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in December
Henderson, 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
Henderson, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Henderson, WV
- Average visibility in December: 5mi
The months with the highest visibility are April, June and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September, October and December (5mi).





