December weather forecast
Pine Summit, PA

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Weather in December

December, the first month of the winter in Pine Summit, is also an icy month, with an average temperature varying between 27°F (-2.8°C) and 37°F (2.8°C).

Temperature

Pine Summit's progression into December includes a drop in the average high-temperature, from a frosty 46.9°F (8.3°C) in November to an icy 37°F (2.8°C). In December, the average low-temperature is a subzero cold 27°F (-2.8°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Pine Summit, during December, the rain falls for 12.7 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 168 rainfall days, and 27.32" (694mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Pine Summit, during December, snow falls for 10 days and regularly aggregates up to 2.95" (75mm) of snow. Throughout the year, there are 48.3 snowfall days, and 17.68" (449mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:12 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:47 pm EST.

Sunshine

In Pine Summit, the average sunshine in December is 4.1h.

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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

How cold is December?

The high-temperature, in December, in Pine Summit, is 37°F (2.8°C), while the low-temperature averages to 27°F (-2.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in July is computed to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 82%.

How much does it rain in December?

In Pine Summit, during December, the rain falls for 12.7 days and regularly aggregates up to 1.93" (49mm) of precipitation.

How many days does it snow in December?

In Pine Summit, in December, during 10 snowfall days, 2.95" (75mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

How many hours of daylight does Pine Summit have in December?

In December, the average day length in Pine Summit, Pennsylvania, is 9h and 16min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:12 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:47 pm EST.

How long on average sun shines in December?

In Pine Summit, the average sunshine duration in December is 4.1h.

What is the month with the lowest UV index?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December?

In Pine Summit, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Pine Summit, PA

Average temperature in December - Pine Summit, PA
  • Average high temperature in December: 37°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 (30.9°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in December
Pine Summit, PA

Average pressure in December - Pine Summit, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Pine Summit, PA

Average wind speed in December - Pine Summit, PA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Pine Summit, PA

Average humidity in December - Pine Summit, 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
Pine Summit, PA

Average rainfall in December - Pine Summit, PA
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in December
Pine Summit, PA

Average rainfall days in December - Pine Summit, PA
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (9.7 days).

Average snowfall in December
Pine Summit, PA

Average snowfall in December - Pine Summit, PA
  • Average snowfall in December: 2.95"

The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Pine Summit, PA

Average snowfall days in December - Pine Summit, PA
  • Average snowfall days in December: 10 days

The month with the highest number of snowfall days is January (12.8 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 Summit, PA

Average daylight in December / Average sunshine in December - Pine Summit, PA
  • Average daylight in December: 9h and 2min

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 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).

Average sunshine days in December
Pine Summit, PA

Average sunshine days in December - Pine Summit, PA
  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (10 days).

Average UV index in December
Pine Summit, PA

Average UV index in December - Pine Summit, 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 Summit, PA

Average cloud cover in December - Pine Summit, PA
  • Average cloud cover in December: 58

The months with the most cloud cover are January, February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Pine Summit, PA

Average visibility in December - Pine Summit, 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).

Pine Summit, Pennsylvania, USA

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