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
Start of December brings a slight shift in the average high-temperature, dipping a bit from November's cool 54.9°F (12.7°C) to a chilly 48°F (8.9°C). During December, the average low-temperature is a cold 33.3°F (0.7°C).Humidity
The average relative humidity in December in Black Mountain is 77%.Rainfall
The months with the most rainfall in Black Mountain are April and December, with an average 3.07" (78mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 1.7 days and typically aggregates up to 4.37" (111mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:26 pm EST.
Sunshine
The month with the least sunshine in Black Mountain is December, with an average of 5.6h of sunshine.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 reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What are December temperatures in Black Mountain?
What is the average humidity in December in Black Mountain?
What is the wettest month in Black Mountain?
How many days does it rain in December in Black Mountain?
When does it snow the most in Black Mountain?
How many days does it snow in December in Black Mountain?
What is the month with the shortest days in Black Mountain?
What is the average length of the day in December in Black Mountain?
What time are sunrise and sunset in December in Black Mountain?
What is the month with the least sunshine in Black Mountain?
How long on average sun shines in December in Black Mountain?
What is the month with the lowest UV index in Black Mountain?
What is the UV index reading in December in Black Mountain?
Average temperature in December
Black Mountain, NC
- Average high temperature in December: 48°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in December
Black Mountain, NC
- 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 (29.99"Hg).
Average wind speed in December
Black Mountain, NC
- Average wind speed in December: 5.6mph
The windiest months (with the highest average wind speed) are January, February and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in December
Black Mountain, NC
- Average humidity in December: 77%
The months with the highest relative humidity are May and September (78%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in December
Black Mountain, NC
- Average rainfall in December: 3.07"
The wettest months (with the highest rainfall) are April and December (3.07").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Black Mountain, NC
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Black Mountain, NC
- Average snowfall in December: 4.37"
The month with the highest snowfall is December (4.37").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Black Mountain, NC
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Black Mountain, NC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Black Mountain, NC
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Black Mountain, NC
- 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 and December (UV index 2).
Average cloud cover in December
Black Mountain, NC
- Average cloud cover in December: 42
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Black Mountain, NC
- Average visibility in December: 5mi
The months with the highest visibility are June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October and December (5mi).
Black Mountain, North Carolina, USA
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