December weather forecast
Woolrich, PA

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Weather in December

December, the first month of the winter in Woolrich, is also an icy month, with an average temperature varying between 26.2°F (-3.2°C) and 36.9°F (2.7°C).

Temperature

The move into December indicates a reduction in the average high-temperature, down from November's chilly 46.2°F (7.9°C) to a wintry 36.9°F (2.7°C). During December, Woolrich experiences a consistent low-temperature average of 26.2°F (-3.2°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 84%.

Rainfall

In Woolrich, Pennsylvania, in December, it is raining for 15 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 181 rainfall days, and 33.07" (840mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Woolrich, in December, during 11 snowfall days, 4.61" (117mm) of snow is typically accumulated. In Woolrich, during the entire year, snow falls for 55.8 days and aggregates up to 25.63" (651mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Woolrich.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:34 am and sunset at 4:50 pm EST.

Sunshine

The average sunshine in December is 3.7h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Woolrich, is 36.9°F (2.7°C), while the low-temperature averages to 26.2°F (-3.2°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 87.8°F (31°C).

What are the most humid months in Woolrich?

February and December, with an average relative humidity of 84%, are most humid months.

What is the average humidity in December?

In Woolrich, the average relative humidity in December is 84%.

How much does it rain in December?

In Woolrich, in December, during 15 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 11 days. Throughout December, 4.61" (117mm) of snow is accumulated.

What is the month with the shortest days in Woolrich?

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

What is the average length of the day in December?

The average day length in December in Woolrich is 9h and 16min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:16 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:50 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.7h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

In Woolrich, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from 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
Woolrich, PA

Average temperature in December - Woolrich, PA
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in December: 26.2°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 (18.7°F).

Average pressure in December
Woolrich, PA

Average pressure in December - Woolrich, 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
Woolrich, PA

Average wind speed in December - Woolrich, PA
  • Average wind speed in December: 7mph

The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Woolrich, PA

Average humidity in December - Woolrich, PA
  • Average humidity in December: 84%

The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in December
Woolrich, PA

Average rainfall in December - Woolrich, PA
  • Average rainfall in December: 2.72"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in December
Woolrich, PA

Average rainfall days in December - Woolrich, PA
  • Average rainfall days in December: 15 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in December
Woolrich, PA

Average snowfall in December - Woolrich, PA
  • Average snowfall in December: 4.61"

The month with the highest snowfall is February (7.05").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Woolrich, PA

Average snowfall days in December - Woolrich, PA
  • Average snowfall days in December: 11 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Woolrich, 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: 3h and 4min

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 36min).

Average sunshine days in December
Woolrich, PA

Average sunshine days in December - Woolrich, PA
  • Average sunshine days in December: 9.9 days

The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (8.5 days).

Average UV index in December
Woolrich, PA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Woolrich, PA

Average cloud cover in December - Woolrich, PA
  • Average cloud cover in December: 61

The months with the most cloud cover are January, February and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in December
Woolrich, PA

Average visibility in December - Woolrich, PA
  • Average visibility in December: 5mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).

Woolrich, Pennsylvania, USA

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