December weather forecast
Sutton Terrace, PA

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Weather in December

December, the first month of the winter in Sutton Terrace, is still a chilly month, with an average temperature fluctuating between 43.2°F (6.2°C) and 32°F (0°C).

Temperature

December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a cool 52°F (11.1°C) in November to a frosty 43.2°F (6.2°C). December nights cool down to an average low-temperature of 32°F (0°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

In December, the rain falls for 6.5 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. Throughout the year, 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 Sutton Terrace, during December, snow falls for 2.1 days and regularly aggregates up to 0.63" (16mm) of snow. In Sutton Terrace, during the entire year, snow falls for 15.1 days and aggregates up to 3.66" (93mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, 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 4:45 pm EST.

Sunshine

The average sunshine in December in Sutton Terrace 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. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

Is December cold?

The average high-temperature and low-temperature during December are 43.2°F (6.2°C) and 32°F (0°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December in Sutton Terrace?

In Sutton Terrace, Pennsylvania, in December, it is raining for 6.5 days, with typically 0.91" (23mm) of accumulated precipitation.

How much does it snow in December?

In Sutton Terrace, in December, snow falls for 2.1 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 23min.

What time are sunrise and sunset in December?

On the first day of December, 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 4:45 pm EST.

How many hours of sunshine does Sutton Terrace have in December?

In December, the average sunshine duration is 4.9h.

When is the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

The average daily maximum UV index in December in Sutton Terrace is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Sutton Terrace, PA

Average temperature in December - Sutton Terrace, 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
Sutton Terrace, PA

Average pressure in December - Sutton Terrace, 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
Sutton Terrace, PA

Average wind speed in December - Sutton Terrace, 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
Sutton Terrace, PA

Average humidity in December - Sutton Terrace, 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
Sutton Terrace, PA

Average rainfall in December - Sutton Terrace, 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
Sutton Terrace, PA

Average rainfall days in December - Sutton Terrace, 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
Sutton Terrace, PA

Average snowfall in December - Sutton Terrace, 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
Sutton Terrace, PA

Average snowfall days in December - Sutton Terrace, 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
Sutton Terrace, PA

Average daylight in December / Average sunshine in December - Sutton Terrace, 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
Sutton Terrace, PA

Average sunshine days in December - Sutton Terrace, 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
Sutton Terrace, PA

Average UV index in December - Sutton Terrace, 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
Sutton Terrace, PA

Average cloud cover in December - Sutton Terrace, 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
Sutton Terrace, PA

Average visibility in December - Sutton Terrace, 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).

Sutton Terrace, Pennsylvania, USA

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