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
The arrival of December signals a shift in temperature, down from a cool 51.4°F (10.8°C) in November to a cold 41.9°F (5.5°C). Blennerhassett experiences an average nighttime temperature of 30.7°F (-0.7°C) in the month of December.Humidity
The average relative humidity in December in Blennerhassett is 82%.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 175.1 rainfall days, and 30.59" (777mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Blennerhassett, during December, snow falls for 9.2 days and regularly aggregates up to 1.93" (49mm) of snow. Throughout the year, there are 42.5 snowfall days, and 12.4" (315mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December in Blennerhassett, sunrise is at 7:27 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:13 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Blennerhassett have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Blennerhassett, WV
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in December: 30.7°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 (23.2°F).
Average pressure in December
Blennerhassett, 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 (29.96"Hg).
Average wind speed in December
Blennerhassett, WV
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Blennerhassett, WV
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Blennerhassett, WV
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Blennerhassett, WV
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in December
Blennerhassett, WV
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Blennerhassett, WV
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is January (13.3 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
Blennerhassett, WV
- Average daylight in December: 9h and 3min
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 5min
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 30min).
Average sunshine days in December
Blennerhassett, WV
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in December
Blennerhassett, WV
- Average UV index in December: 2
The months with the highest UV index are June, 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
Blennerhassett, WV
- Average cloud cover in December: 60
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
Blennerhassett, 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).
Blennerhassett, West Virginia, USA
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