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
The average high-temperature drops in December, from November's frosty 47.8°F (8.8°C) to a wintry 38.5°F (3.6°C). The average temperature during December nights is registered at a subzero cold 27.9°F (-2.3°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 11.9 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Penns Creek, during the entire year, the rain falls for 165.6 days and collects up to 33.54" (852mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 8.2 days. Throughout December, 3.7" (94mm) of snow is accumulated. Throughout the year, there are 43.3 snowfall days, and 23.11" (587mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:50 pm EST.
Sunshine
The average sunshine in December is 4.3h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the 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 Penns Creek have in December?
What are the months with the lowest UV index in Penns Creek?
How high is the UV index in December?
Average temperature in December
Penns Creek, PA
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Penns Creek, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Penns Creek, PA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Penns Creek, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in December
Penns Creek, PA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in December
Penns Creek, PA
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Penns Creek, PA
- Average snowfall in December: 3.7"
The month with the highest snowfall is February (7.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Penns Creek, PA
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Penns Creek, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Penns Creek, PA
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Penns Creek, PA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Penns Creek, PA
- Average cloud cover in December: 55
The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Penns Creek, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Penns Creek, Pennsylvania, USA
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