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's arrival comes with a decrease in the average high-temperature, moving from a cool 50.2°F (10.1°C) in November to an icy 40.8°F (4.9°C). An average nighttime temperature of 29.1°F (-1.6°C) is recorded in Rolling Hill Acres during December.Humidity
In December, the average relative humidity in Rolling Hill Acres is 80%.Rainfall
In December, in Rolling Hill Acres, the rain falls for 5.8 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in Rolling Hill Acres, Pennsylvania, there are 91.3 rainfall days, and 7.28" (185mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Rolling Hill Acres. In Rolling Hill Acres, Pennsylvania, in December, during 2.2 snowfall days, 0.59" (15mm) of snow is typically accumulated. In Rolling Hill Acres, Pennsylvania, during the entire year, snow falls for 14.8 days and aggregates up to 2.24" (57mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December in Rolling Hill Acres, sunrise is at 7:05 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:44 pm EST.
Sunshine
In Rolling Hill Acres, the average sunshine in December is 4.7h.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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is December in Rolling Hill Acres?
What is the average humidity in December in Rolling Hill Acres?
How much does it rain in Rolling Hill Acres in December?
How many days does it snow in December in Rolling Hill Acres?
What is the month with the shortest days in Rolling Hill Acres?
How many hours of daylight does Rolling Hill Acres have in December?
When are sunrise and sunset in December in Rolling Hill Acres?
How long on average sun shines in December in Rolling Hill Acres?
What are the months with the lowest UV index in Rolling Hill Acres?
How high is the UV index in December in Rolling Hill Acres?
Average temperature in December
Rolling Hill Acres, PA
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Rolling Hill Acres, 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
Rolling Hill Acres, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Rolling Hill Acres, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in December
Rolling Hill Acres, PA
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is July (0.91").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
Rolling Hill Acres, PA
- Average rainfall days in December: 5.8 days
The months with the highest number of rainy days are June and July (10.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Rolling Hill Acres, PA
- Average snowfall in December: 0.59"
The month with the highest snowfall is March (0.63").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Rolling Hill Acres, PA
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rolling Hill Acres, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Rolling Hill Acres, PA
- Average sunshine days in December: 22.8 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is June (16.7 days).
Average UV index in December
Rolling Hill Acres, 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, November and December (UV index 2).
Average cloud cover in December
Rolling Hill Acres, PA
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Rolling Hill Acres, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, November and December (6mi).
The months with the lowest visibility are May, June, July, August, September and October (5mi).
Rolling Hill Acres, Pennsylvania, USA
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