December weather forecastSwengel, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Swengel, Pennsylvania, with an average temperature ranging between max 38.5°F (3.6°C) and min 27.9°F (-2.3°C).Temperature
Swengel's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 47.8°F (8.8°C) to a wintry 38.5°F (3.6°C). Swengel's average low-temperature is measured at a freezing cold 27.9°F (-2.3°C) during December.Humidity
In Swengel, the average relative humidity in December is 81%.Rainfall
In Swengel, in December, it is raining for 11.9 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 165.6 rainfall days, and 33.54" (852mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 8.2 days. Throughout December, 3.7" (94mm) of snow is accumulated. Throughout the year, there are 43.3 snowfall days, and 23.11" (587mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:50 pm EST.
Sunshine
The average sunshine in December is 4.3h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. 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
Swengel, PA
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Swengel, 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
Swengel, PA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Swengel, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in December
Swengel, PA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in December
Swengel, PA
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Swengel, PA
- Average snowfall in December: 3.7"
The month with the highest snowfall is February (7.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Swengel, PA
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Swengel, PA
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 4h and 18min
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 0min).
Average sunshine days in December
Swengel, PA
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Swengel, 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, October, November and December (UV index 2).
Average cloud cover in December
Swengel, PA
- Average cloud cover in December: 55
The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Swengel, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
