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
December shows a mild decline in the average high-temperature, falling from November's chilly 46.9°F (8.3°C) to a cold 37°F (2.8°C). Pine Grove Mills's nights in December experience an average temperature drop to a freezing cold 26.6°F (-3°C).Humidity
The average relative humidity in December in Pine Grove Mills, Pennsylvania, is 83%.Rainfall
In Pine Grove Mills, in December, during 13.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Pine Grove Mills, during the entire year, the rain falls for 174.7 days and collects up to 31.61" (803mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 11.9 days. Throughout December, 5.16" (131mm) of snow is accumulated. In Pine Grove Mills, during the entire year, snow falls for 59.7 days and aggregates up to 31.46" (799mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:16 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:54 pm EST.
Sunshine
The average sunshine in December is 3.9h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Pine Grove Mills have in December?
When are sunrise and sunset in December?
How long on average sun shines in December in Pine Grove Mills?
What are the months with the lowest UV index?
What is the UV index intensity in December in Pine Grove Mills?
Average temperature in December
Pine Grove Mills, PA
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Pine Grove Mills, 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
Pine Grove Mills, PA
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Pine Grove Mills, PA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Pine Grove Mills, PA
- Average rainfall in December: 2.6"
The wettest months (with the highest rainfall) are April and May (3.35").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in December
Pine Grove Mills, PA
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Pine Grove Mills, PA
- Average snowfall in December: 5.16"
The month with the highest snowfall is February (8.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Pine Grove Mills, PA
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Pine Grove Mills, 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 18min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Pine Grove Mills, PA
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is November (14.1 days).
The month with the least sunshine days is February (8.9 days).
Average UV index in December
Pine Grove Mills, PA
- Average UV index in December: 2
The month with the highest UV index is June (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
Pine Grove Mills, PA
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Pine Grove Mills, 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).
Pine Grove Mills, Pennsylvania, USA
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