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
With the beginning of December, the average high-temperature shows a decrease, transitioning from a chilly 46.2°F (7.9°C) in November to a wintry 36.9°F (2.7°C). During December, the temperature tends to dip to an average of 25.9°F (-3.4°C) at night.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 84%.Rainfall
In December, the rain falls for 11.3 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. In Penobscot, during the entire year, the rain falls for 142.7 days and collects up to 13.19" (335mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Penobscot. In Penobscot, in December, during 10 snowfall days, 1.93" (49mm) of snow is typically accumulated. Throughout the year, there are 49.9 snowfall days, and 9.92" (252mm) 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 the month, sunrise is at 7:10 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:44 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What are the most humid months?
What is the average humidity in December?
How many days 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 Penobscot have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Penobscot have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Penobscot, PA
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Penobscot, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Penobscot, PA
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Penobscot, PA
- Average humidity in December: 84%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Penobscot, PA
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in December
Penobscot, PA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Penobscot, PA
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Penobscot, PA
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Penobscot, 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in December
Penobscot, PA
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in December
Penobscot, PA
- 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
Penobscot, PA
- Average cloud cover in December: 60
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Penobscot, 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).
Penobscot, Pennsylvania, USA
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