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
December brings a minor decrease, with the average high-temperature reducing from a cool 52.7°F (11.5°C) in November to a frosty 43.7°F (6.5°C). Throughout December, Paper Mills experiences a low-temperature average of 32.5°F (0.3°C).Humidity
The average relative humidity in December is 76%.Rainfall
In December, the rain falls for 9.8 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 153.8 rainfall days, and 30.94" (786mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Paper Mills, during December, snow falls for 2.7 days and regularly aggregates up to 1.18" (30mm) of snow. In Paper Mills, during the entire year, snow falls for 16.8 days and aggregates up to 8.5" (216mm) 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 December, sunrise is at 7:03 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:44 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To guard against the harmful effects of the Sun, minimize exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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 many days 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 in Paper Mills?
How many hours of sunshine does Paper Mills have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Paper Mills, PA
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Paper Mills, 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 (29.93"Hg).
Average wind speed in December
Paper Mills, PA
- Average wind speed in December: 7.7mph
The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Paper Mills, PA
- Average humidity in December: 76%
The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).
Average rainfall in December
Paper Mills, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in December
Paper Mills, PA
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Paper Mills, PA
- Average snowfall in December: 1.18"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Paper Mills, PA
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Paper Mills, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Paper Mills, PA
- Average sunshine days in December: 19 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Paper Mills, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Paper Mills, PA
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Paper Mills, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Paper Mills, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location