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
In Terra Alta, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's frosty 46.9°F (8.3°C) to an icy 38.3°F (3.5°C). Terra Alta's average low-temperature during December nights is observed to be a freezing cold 26.8°F (-2.9°C).Humidity
In December, the average relative humidity is 85%.Rainfall
In Terra Alta, in December, it is raining for 11.1 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 172.7 rainfall days, and 28.23" (717mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Terra Alta, it is snowing for 14.5 days. Throughout December, 7.13" (181mm) of snow is accumulated. In Terra Alta, during the entire year, snow falls for 72.1 days and aggregates up to 33.03" (839mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:04 pm EST.
Sunshine
In Terra Alta, the average sunshine in December is 3.5h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December in Terra Alta?
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 Terra Alta have in December?
When is the lowest UV index in Terra Alta?
What is the UV index reading in December?
Average temperature in December
Terra Alta, WV
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Terra Alta, 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
Terra Alta, WV
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Terra Alta, WV
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are June and July (79%).
Average rainfall in December
Terra Alta, WV
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Terra Alta, WV
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is May (21 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Terra Alta, WV
- Average snowfall in December: 7.13"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Terra Alta, WV
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Terra Alta, WV
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Terra Alta, WV
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is November (13.6 days).
The month with the least sunshine days is January (6.9 days).
Average UV index in December
Terra Alta, WV
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Terra Alta, WV
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in December
Terra Alta, WV
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August and November (5mi).
The months with the lowest visibility are January, February, September, October and December (4mi).
Terra Alta, West Virginia, USA
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