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 Thomas, 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 a wintry 38.3°F (3.5°C). Throughout December, an average low-temperature of 26.1°F (-3.3°C) is experienced.Humidity
In Thomas, the average relative humidity in December is 84%.Rainfall
In Thomas, during December, the rain falls for 13.8 days and regularly aggregates up to 3.58" (91mm) of precipitation. Throughout the year, there are 192.7 rainfall days, and 37.13" (943mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Thomas, during December, snow falls for 15.5 days and regularly aggregates up to 8.98" (228mm) of snow. In Thomas, during the entire year, snow falls for 81 days and aggregates up to 52.36" (1330mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:18 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:05 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Thomas. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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 much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Thomas have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Thomas have in December?
What is the month with the lowest UV index?
What is the UV index reading in December in Thomas?
Average temperature in December
Thomas, WV
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Thomas, 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
Thomas, WV
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Thomas, WV
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in December
Thomas, WV
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
Thomas, WV
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is May (22.9 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in December
Thomas, WV
- Average snowfall in December: 8.98"
The month with the highest snowfall is January (11.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Thomas, WV
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thomas, 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: 4h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Thomas, WV
- Average sunshine days in December: 8.3 days
The month with the most sunshine days is October (12.5 days).
The month with the least sunshine days is May (6.1 days).
Average UV index in December
Thomas, 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
Thomas, WV
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Thomas, WV
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, March, September and December (4mi).
Thomas, West Virginia, USA
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