December weather forecast
Sunderlinville, PA

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Weather in December

December, the first month of the winter in Sunderlinville, is also an icy month, with an average temperature fluctuating between 34.2°F (1.2°C) and 24.1°F (-4.4°C).

Temperature

December implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 43.7°F (6.5°C) to a wintry 34.2°F (1.2°C). During December, the nighttime temperature in Sunderlinville averages to a subzero cold 24.1°F (-4.4°C).

Humidity

In Sunderlinville, the average relative humidity in December is 86%.

Rainfall

In Sunderlinville, during December, the rain falls for 11.8 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Sunderlinville, during the entire year, the rain falls for 174 days and collects up to 30.83" (783mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Sunderlinville, during December, snow falls for 18 days and regularly aggregates up to 7.95" (202mm) of snow. Throughout the year, in Sunderlinville, there are 86.8 snowfall days, and 41.54" (1055mm) of snow is accumulated.

Daylight

The month with the shortest days in Sunderlinville, Pennsylvania, is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:49 pm EST.

Sunshine

The months with the least sunshine in Sunderlinville are January and December, with an average of 2.9h of sunshine.

UV index

The months with the lowest UV index in Sunderlinville are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 1 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

Frequently asked questions

How cold is it in Sunderlinville in December?

In December, in Sunderlinville, the average high-temperature is 34.2°F (1.2°C), and the average low-temperature is 24.1°F (-4.4°C).

What is the average humidity in December in Sunderlinville?

In December, the average relative humidity in Sunderlinville, Pennsylvania, is 86%.

How much does it rain in Sunderlinville in December?

In Sunderlinville, during December, the rain falls for 11.8 days and regularly aggregates up to 2.64" (67mm) of precipitation.

How many days does it snow in December in Sunderlinville?

In Sunderlinville, Pennsylvania, during December, snow falls for 18 days and regularly aggregates up to 7.95" (202mm) of snow.

What is the month with the shortest days in Sunderlinville?

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

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

In December, the average day length in Sunderlinville is 9h and 12min.

What time are sunrise and sunset in December in Sunderlinville?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of the month, in Sunderlinville, Pennsylvania, sunrise is at 7:37 am and sunset at 4:49 pm EST.

What are the months with the least sunshine in Sunderlinville?

The months with the least sunshine are January and December, with an average of 2.9h of sunshine.

How many hours of sunshine does Sunderlinville have in December?

The average sunshine duration in December in Sunderlinville is 2.9h.

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

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Sunderlinville, Pennsylvania.

What is the UV index reading in December in Sunderlinville?

In Sunderlinville, Pennsylvania, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Sunderlinville, PA

Average temperature in December - Sunderlinville, PA
  • Average high temperature in December: 34.2°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 24.1°F

The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure in December
Sunderlinville, PA

Average pressure in December - Sunderlinville, 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
Sunderlinville, PA

Average wind speed in December - Sunderlinville, PA
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in December
Sunderlinville, PA

Average humidity in December - Sunderlinville, PA
  • Average humidity in December: 86%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are June and July (78%).

Average rainfall in December
Sunderlinville, PA

Average rainfall in December - Sunderlinville, PA
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in December
Sunderlinville, PA

Average rainfall days in December - Sunderlinville, PA
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (8.9 days).

Average snowfall in December
Sunderlinville, PA

Average snowfall in December - Sunderlinville, PA
  • Average snowfall in December: 7.95"

The month with the highest snowfall is February (10.2").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Sunderlinville, PA

Average snowfall days in December - Sunderlinville, PA
  • Average snowfall days in December: 18 days

The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Sunderlinville, 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: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).

Average sunshine days in December
Sunderlinville, PA

Average sunshine days in December - Sunderlinville, PA
  • Average sunshine days in December: 7 days

The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.9 days).

Average UV index in December
Sunderlinville, PA

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

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

Average cloud cover in December
Sunderlinville, PA

Average cloud cover in December - Sunderlinville, PA
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 41).

Average visibility in December
Sunderlinville, PA

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

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

Sunderlinville, Pennsylvania, USA

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