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 shift in the average high-temperature, falling from November's chilly 47.3°F (8.5°C) to an icy 37.9°F (3.3°C). The average low-temperature, in December, is a freezing cold 27.1°F (-2.7°C).Humidity
The average relative humidity in December is 82%.Rainfall
In Roaring Spring, during December, the rain falls for 11.7 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Roaring Spring, during the entire year, the rain falls for 170.1 days and collects up to 29.69" (754mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Roaring Spring, in December, snow falls for 9.4 days, with typically accumulated 3.7" (94mm) of snow. In Roaring Spring, during the entire year, snow falls for 52.3 days and aggregates up to 25.55" (649mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:17 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:57 pm EST.
Sunshine
In Roaring Spring, the average sunshine in December is 4.2h.UV index
January through March, 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 health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in 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?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Roaring Spring have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Roaring Spring, PA
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.1°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 (19.9°F).
Average pressure in December
Roaring Spring, 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
Roaring Spring, PA
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Roaring Spring, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Roaring Spring, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in December
Roaring Spring, PA
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in December
Roaring Spring, PA
- Average snowfall in December: 3.7"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Roaring Spring, PA
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roaring Spring, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 1min
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 0min).
Average sunshine days in December
Roaring Spring, PA
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in December
Roaring Spring, 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
Roaring Spring, PA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Roaring Spring, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Roaring Spring, Pennsylvania, USA
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