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
As Wellersburg enters December, the average high-temperature decreases from the a frosty 48.4°F (9.1°C) of November to a wintry 38.8°F (3.8°C). During the nights in December, Wellersburg observes an average low-temperature of 27.3°F (-2.6°C).Humidity
In Wellersburg, Pennsylvania, the average relative humidity in December is 82%.Rainfall
In December, in Wellersburg, Pennsylvania, the rain falls for 14.1 days. Throughout December, 2.87" (73mm) of precipitation is accumulated. In Wellersburg, during the entire year, the rain falls for 186.5 days and collects up to 31.69" (805mm) of precipitation.Snowfall
Months with snowfall in Wellersburg are January through May, October through December. In Wellersburg, in December, snow falls for 10.8 days, with typically accumulated 4.13" (105mm) of snow. In Wellersburg, during the entire year, snow falls for 56.7 days and aggregates up to 28.46" (723mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Wellersburg, Pennsylvania.On the first day of the month, sunrise is at 7:17 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:01 pm EST.
Sunshine
In Wellersburg, Pennsylvania, the average sunshine in December is 4.7h.UV index
The months with the lowest UV index in Wellersburg are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
Is December cold in Wellersburg?
What is the average humidity in December in Wellersburg?
How many days does it rain in December in Wellersburg?
How many days does it snow in December in Wellersburg?
What is the month with the shortest days in Wellersburg?
What is the average length of the day in December in Wellersburg?
What time are sunrise and sunset in December in Wellersburg?
How many hours of sunshine does Wellersburg have in December?
When is the lowest UV index in Wellersburg?
How high is the UV index in December in Wellersburg?
Average temperature in December
Wellersburg, PA
- Average high temperature in December: 38.8°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Wellersburg, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Wellersburg, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Wellersburg, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Wellersburg, PA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in December
Wellersburg, PA
- Average rainfall days in December: 14.1 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is November (11.1 days).
Average snowfall in December
Wellersburg, PA
- Average snowfall in December: 4.13"
The month with the highest snowfall is February (6.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Wellersburg, PA
- Average snowfall days in December: 10.8 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wellersburg, PA
- 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: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Wellersburg, PA
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in December
Wellersburg, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Wellersburg, PA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Wellersburg, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Wellersburg, Pennsylvania, USA
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