December weather forecastShaffers Corners, PA
December
Weather in December
December, the first month of the winter in Shaffers Corners, is still a cold month, with an average temperature ranging between max 35.6°F (2°C) and min 25.7°F (-3.5°C).Temperature
As December arrives, Shaffers Corners's weather displays a decrease in high-temperatures, transitioning from November's frosty 45.5°F (7.5°C) to a wintry 35.6°F (2°C). During December, the temperature tends to dip to an average of 25.7°F (-3.5°C) at night.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 84%.Rainfall
In December, the rain falls for 11.8 days. Throughout December, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 159.9 rainfall days, and 26.65" (677mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 12.5 days. Throughout December, 4.92" (125mm) of snow is accumulated. Throughout the year, there are 64.6 snowfall days, and 28.03" (712mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:10 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:43 pm EST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 3.4h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 1 in December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. 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
Shaffers Corners, PA
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in December
Shaffers Corners, 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
Shaffers Corners, PA
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are January, February, March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Shaffers Corners, PA
- Average humidity in December: 84%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
Shaffers Corners, PA
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in December
Shaffers Corners, PA
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Shaffers Corners, PA
- Average snowfall in December: 4.92"
The month with the highest snowfall is February (7.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Shaffers Corners, PA
- Average snowfall days in December: 12.5 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
Shaffers Corners, PA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 24min).
Average sunshine days in December
Shaffers Corners, PA
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in December
Shaffers Corners, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Shaffers Corners, PA
- Average cloud cover in December: 65
The months with the most cloud cover are January, February and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Shaffers Corners, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
