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 comes with a decrease in the average high-temperature, falling from a frosty 48°F (8.9°C) in November to an icy 38.8°F (3.8°C). During December nights, Arnots Addition records an average temperature of 27.7°F (-2.4°C).Humidity
In Arnots Addition, the average relative humidity in December is 81%.Rainfall
In Arnots Addition, in December, it is raining for 13.5 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 172.9 rainfall days, and 34.21" (869mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Arnots Addition, in December, during 6.9 snowfall days, 2.8" (71mm) of snow is typically accumulated. In Arnots Addition, during the entire year, snow falls for 39.7 days and aggregates up to 20.47" (520mm) of snow.Daylight
December has the shortest days of the year in Arnots Addition, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:47 pm EST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 4.4h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Arnots Addition. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Arnots Addition?
What is the average humidity in December in Arnots Addition?
How much does it rain in Arnots Addition in December?
How much does it snow in Arnots Addition in December?
What is the month with the shortest days in Arnots Addition?
How many hours of daylight does Arnots Addition have in December?
When is the sunrise / sunset in December in Arnots Addition?
What are the months with the least sunshine in Arnots Addition?
How long on average sun shines in December in Arnots Addition?
What are the months with the lowest UV index in Arnots Addition?
What is the UV index intensity in December in Arnots Addition?
Average temperature in December
Arnots Addition, 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 (32.5°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Arnots Addition, 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 (29.94"Hg).
Average wind speed in December
Arnots Addition, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Arnots Addition, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Arnots Addition, PA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in December
Arnots Addition, PA
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and November (10.8 days).
Average snowfall in December
Arnots Addition, PA
- Average snowfall in December: 2.8"
The month with the highest snowfall is January (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Arnots Addition, PA
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Arnots Addition, 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 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 24min).
Average sunshine days in December
Arnots Addition, PA
- Average sunshine days in December: 14.2 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
Arnots Addition, PA
- Average UV index in December: 2
The month with the highest UV index is July (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
Arnots Addition, PA
- Average cloud cover in December: 53
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Arnots Addition, 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).
Arnots Addition, Pennsylvania, USA
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