December weather forecastHacklebernie, PA
December
Weather in December
December, the first month of the winter in Hacklebernie, is also a wintry month, with an average temperature varying between 38.3°F (3.5°C) and 27.3°F (-2.6°C).Temperature
Transition into December marks a drop in the average high-temperature, moving from a chilly 47.7°F (8.7°C) in November to a cold 38.3°F (3.5°C). Hacklebernie throughout December, experiences an average nighttime temperature of 27.3°F (-2.6°C).Humidity
The average relative humidity in December is 82%.Rainfall
In Hacklebernie, during December, the rain falls for 13 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Hacklebernie, during the entire year, the rain falls for 171.8 days and collects up to 34.25" (870mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Hacklebernie, Pennsylvania. In Hacklebernie, in December, during 7.1 snowfall days, 3.31" (84mm) of snow is typically accumulated. In Hacklebernie, during the entire year, snow falls for 41.5 days and aggregates up to 20.91" (531mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:45 pm EST.
Sunshine
The average sunshine in December is 4.4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hacklebernie, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Hacklebernie, 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
Hacklebernie, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Hacklebernie, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Hacklebernie, PA
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Hacklebernie, PA
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in December
Hacklebernie, PA
- Average snowfall in December: 3.31"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hacklebernie, PA
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hacklebernie, 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 24min
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 12min).
Average sunshine days in December
Hacklebernie, PA
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is May (10 days).
Average UV index in December
Hacklebernie, PA
- Average UV index in December: 2
The month with the highest UV index is 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
Hacklebernie, PA
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Hacklebernie, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
