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
The arrival of December corresponds with a light shift in temperature, down from a cool 52°F (11.1°C) in November to a frosty 43.2°F (6.2°C). December nights in Penn Wynne are marked by an average low-temperature of 32°F (0°C).Humidity
In Penn Wynne, the average relative humidity in December is 77%.Rainfall
In Penn Wynne, Pennsylvania, in December, it is raining for 6.5 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, in Penn Wynne, there are 111.8 rainfall days, and 9.69" (246mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Penn Wynne, in December, snow falls for 2.1 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, there are 15.1 snowfall days, and 3.66" (93mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December in Penn Wynne, sunrise is at 7:04 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:46 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Penn Wynne. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is it in Penn Wynne in December?
What is the average humidity in December in Penn Wynne?
How much does it rain in Penn Wynne in December?
How many days does it snow in December in Penn Wynne?
What is the month with the shortest days in Penn Wynne?
What is the average length of the day in December in Penn Wynne?
What time are sunrise and sunset in December in Penn Wynne?
How long on average sun shines in December in Penn Wynne?
What are the months with the lowest UV index in Penn Wynne?
What is the UV index reading in December in Penn Wynne?
Average temperature in December
Penn Wynne, PA
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in December
Penn Wynne, 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
Penn Wynne, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Penn Wynne, PA
- Average humidity in December: 77%
The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (71%).
Average rainfall in December
Penn Wynne, PA
- Average rainfall in December: 0.91"
The wettest months (with the highest rainfall) are July and August (1.14").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Penn Wynne, PA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Penn Wynne, PA
- Average snowfall in December: 0.63"
The months with the highest snowfall are February and March (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Penn Wynne, PA
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Penn Wynne, 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 24min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Penn Wynne, PA
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (14.9 days).
Average UV index in December
Penn Wynne, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Penn Wynne, PA
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Penn Wynne, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Penn Wynne, Pennsylvania, USA
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