December weather forecastFredericksville, PA
December
Weather in December
December, the first month of the winter in Fredericksville, is also a wintry month, with an average temperature varying between 40.3°F (4.6°C) and 28.9°F (-1.7°C).Temperature
Welcoming December, Fredericksville observes a shift in the average high-temperature, falling from November's cool 50°F (10°C) to a cold 40.3°F (4.6°C). Fredericksville, during the month of December, experiences an average low-temperature of 28.9°F (-1.7°C).Humidity
The average relative humidity in December in Fredericksville, Pennsylvania, is 80%.Rainfall
In Fredericksville, in December, it is raining for 10.8 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, in Fredericksville, there are 156.9 rainfall days, and 33.15" (842mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Fredericksville. In Fredericksville, during December, snow falls for 5.2 days and regularly aggregates up to 2.87" (73mm) of snow. In Fredericksville, during the entire year, snow falls for 31.2 days and aggregates up to 18.98" (482mm) of snow.Daylight
December has the shortest days of the year in Fredericksville, with an average of 9h and 18min of daylight.On the first day of December in Fredericksville, sunrise is at 7:07 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:46 pm EST.
Sunshine
In December, the average sunshine in Fredericksville is 4.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fredericksville. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fredericksville, PA
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Fredericksville, 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
Fredericksville, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Fredericksville, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Fredericksville, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Fredericksville, PA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Fredericksville, PA
- Average snowfall in December: 2.87"
The month with the highest snowfall is March (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Fredericksville, PA
- Average snowfall days in December: 5.2 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Fredericksville, 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: 4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Fredericksville, PA
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Fredericksville, 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
Fredericksville, PA
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Fredericksville, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October and December (5mi).
