December weather forecastFlinton, PA
December
Weather in December
December, the first month of the winter in Flinton, is also a wintry month, with an average temperature fluctuating between 26.6°F (-3°C) and 36.5°F (2.5°C).Temperature
A change in temperatures is noted as November gives way to December, with average highs reducing from a frosty 46.2°F (7.9°C) to an icy 36.5°F (2.5°C). Throughout December, Flinton experiences a low-temperature average of 26.6°F (-3°C).Humidity
The average relative humidity in December is 85%.Rainfall
In Flinton, in December, during 10.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Flinton, during the entire year, the rain falls for 173.2 days and collects up to 32.44" (824mm) of precipitation.Snowfall
Months with snowfall in Flinton, Pennsylvania, are January through May, October through December. In December, it is snowing for 12.7 days. Throughout December, 5.98" (152mm) of snow is accumulated. In Flinton, during the entire year, snow falls for 65 days and aggregates up to 32.28" (820mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:56 pm EST.
Sunshine
The average sunshine in December is 3.4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Flinton, PA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Flinton, 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
Flinton, PA
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Flinton, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in December
Flinton, PA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in December
Flinton, PA
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Flinton, PA
- Average snowfall in December: 5.98"
The month with the highest snowfall is January (7.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Flinton, PA
- Average snowfall days in December: 12.7 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Flinton, PA
- Average daylight in December: 9h and 18min
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: 3h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Flinton, PA
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is November (14.1 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in December
Flinton, 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
Flinton, PA
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Flinton, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).





