December weather forecast
Damascus, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Damascus, Pennsylvania, with an average temperature varying between 25°F (-3.9°C) and 36°F (2.2°C).

Temperature

Start of December brings a shift in the average high-temperature, falling from November's chilly 45.9°F (7.7°C) to a cold 36°F (2.2°C). December brings Damascus a consistent average low-temperature of 25°F (-3.9°C).

Humidity

With an average relative humidity of 85%, December is the most humid month in Damascus.

Rainfall

In Damascus, in December, during 8.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Damascus, during the entire year, the rain falls for 132.5 days and collects up to 19.21" (488mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The months with the most snowfall are January and December, with an average 3.27" (83mm) of accumulated snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December in Damascus, sunrise is at 7:08 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:39 pm EST.

Sunshine

In Damascus, the average sunshine in December is 3.8h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

How cold is it in Damascus in December?

The average high-temperature and low-temperature during December are 36°F (2.2°C) and 25°F (-3.9°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the most humid month in Damascus?

December is the most humid month in Damascus, Pennsylvania, with an average relative humidity of 85%.

What is the average humidity in December in Damascus?

In December, the average relative humidity in Damascus, Pennsylvania, is 85%.

How much does it rain in Damascus in December?

In Damascus, Pennsylvania, during December, the rain falls for 8.5 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When does it snow the most in Damascus?

The months with the most snowfall in Damascus, Pennsylvania, are January and December, with an average 3.27" (83mm) of accumulated snow.

How much does it snow in Damascus in December?

In December, it is snowing for 8.2 days. Throughout December, 3.27" (83mm) of snow is accumulated.

What is the month with the shortest days in Damascus?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

How many hours of daylight does Damascus have in December?

The average day length in December is 9h and 13min.

When is the sunrise / sunset in December in Damascus?

On the first day of December in Damascus, Pennsylvania, sunrise is at 7:08 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:39 pm EST.

How long on average sun shines in December in Damascus?

The average sunshine duration in December in Damascus, Pennsylvania, is 3.8h.

When is the lowest UV index in Damascus?

With an average maximum UV index of 1, December is the month with the lowest UV index.

What is the UV index reading in December in Damascus?

The average daily maximum UV index in December in Damascus is 1. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
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
Damascus, PA

Average temperature in December - Damascus, PA
  • Average high temperature in December: 36°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in December
Damascus, PA

Average pressure in December - Damascus, PA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Damascus, PA

Average wind speed in December - Damascus, PA
  • Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Damascus, PA

Average humidity in December - Damascus, PA
  • Average humidity in December: 85%

The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is July (77%).

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Average rainfall in December
Damascus, PA

Average rainfall in December - Damascus, PA
  • Average rainfall in December: 1.46"

The wettest months (with the highest rainfall) are July and August (2.09").
The driest months (with the least rainfall) are January and September (1.14").

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Average rainfall days in December
Damascus, PA

Average rainfall days in December - Damascus, PA
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (15.6 days).
The months with the least rainy days are January and February (6.9 days).

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Average snowfall in December
Damascus, PA

Average snowfall in December - Damascus, PA
  • Average snowfall in December: 3.27"

The months with the highest snowfall are January and December (3.27").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Damascus, PA

Average snowfall days in December - Damascus, PA
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Damascus, PA

Average daylight in December / Average sunshine in December - Damascus, PA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • 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 February (Average sunshine: 3h and 36min).

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Average sunshine days in December
Damascus, PA

Average sunshine days in December - Damascus, PA
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (12.5 days).

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Average UV index in December
Damascus, PA

Average UV index in December - Damascus, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Damascus, PA

Average cloud cover in December - Damascus, PA
  • Average cloud cover in December: 62

The months with the most cloud cover are February and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 38).

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Average visibility in December
Damascus, PA

Average visibility in December - Damascus, 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).

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Damascus, Pennsylvania, USA

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