December weather forecast
Dorrance, PA

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Weather in December

December, the first month of the winter in Dorrance, is also an icy month, with an average temperature fluctuating between 36.9°F (2.7°C) and 25.9°F (-3.4°C).

Temperature

In Dorrance, the average high-temperature in December decreases from a chilly 46.2°F (7.9°C) in November to a cold 36.9°F (2.7°C). Throughout December, the nighttime temperature in Dorrance, Pennsylvania, averages to a freezing cold 25.9°F (-3.4°C).

Humidity

In Dorrance, the average relative humidity in December is 83%.

Rainfall

In Dorrance, during December, the rain falls for 10.3 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Dorrance, during the entire year, the rain falls for 162.5 days and collects up to 30.35" (771mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Dorrance, in December, during 7.8 snowfall days, 3.5" (89mm) of snow is typically accumulated. In Dorrance, during the entire year, snow falls for 41.1 days and aggregates up to 21.38" (543mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:45 pm EST.

Sunshine

The average sunshine in December is 3.8h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Dorrance in December?

In Dorrance, 36.9°F (2.7°C) is the average high-temperature and 25.9°F (-3.4°C) is the average low-temperature during December. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 86°F (30°C).

What is the average humidity in December in Dorrance?

In Dorrance, the average relative humidity in December is 83%.

How many days does it rain in December in Dorrance?

In Dorrance, Pennsylvania, in December, it is raining for 10.3 days, with typically 2.2" (56mm) of accumulated precipitation.

How much does it snow in Dorrance in December?

In Dorrance, in December, snow falls for 7.8 days, with typically accumulated 3.5" (89mm) of snow.

What is the month with the shortest days in Dorrance?

December has the shortest days of the year in Dorrance, Pennsylvania, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Dorrance?

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

When are sunrise and sunset in December in Dorrance?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:45 pm EST.

How many hours of sunshine does Dorrance have in December?

In December, the average sunshine duration in Dorrance is 3.8h.

What is the month with the lowest UV index in Dorrance?

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

How high is the UV index in December in Dorrance?

In Dorrance, Pennsylvania, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Dorrance, PA

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

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in December
Dorrance, PA

Average pressure in December - Dorrance, 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
Dorrance, PA

Average wind speed in December - Dorrance, PA
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Dorrance, PA

Average humidity in December - Dorrance, PA
  • Average humidity in December: 83%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (78%).

Average rainfall in December
Dorrance, PA

Average rainfall in December - Dorrance, PA
  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and September (2.09").

Average rainfall days in December
Dorrance, PA

Average rainfall days in December - Dorrance, PA
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in December
Dorrance, PA

Average snowfall in December - Dorrance, PA
  • Average snowfall in December: 3.5"

The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Dorrance, PA

Average snowfall days in December - Dorrance, PA
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Dorrance, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

Average sunshine days in December
Dorrance, PA

Average sunshine days in December - Dorrance, PA
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.1 days).

Average UV index in December
Dorrance, PA

Average UV index in December - Dorrance, 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).

Average cloud cover in December
Dorrance, PA

Average cloud cover in December - Dorrance, PA
  • Average cloud cover in December: 60

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in December
Dorrance, PA

Average visibility in December - Dorrance, 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).

Dorrance, Pennsylvania, USA

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