December weather forecast
Farrell, PA

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Weather in December

The first month of the winter, December, is also an icy month in Farrell, Pennsylvania, with an average temperature fluctuating between 26.8°F (-2.9°C) and 37.6°F (3.1°C).

Temperature

As December commences, the average high-temperature shows a reduction, transitioning from a chilly 47.1°F (8.4°C) in November to an icy 37.6°F (3.1°C). Farrell's nights in December experience an average temperature drop to a subzero cold 26.8°F (-2.9°C).

Humidity

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

Rainfall

In Farrell, in December, it is raining for 12.7 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 182.1 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Farrell, Pennsylvania, in December, snow falls for 15.5 days, with typically accumulated 5.98" (152mm) of snow. Throughout the year, there are 76.4 snowfall days, and 31.69" (805mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Farrell.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:47 am and sunset at 5:03 pm EST.

Sunshine

In Farrell, the average sunshine in December is 2.9h.

UV index

The month with the lowest UV index in Farrell is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 1 suggests this advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. During bright days, sunglasses that offer UVA and UVB defense are recommended. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is it in Farrell in December?

The average high-temperature, in December, in Farrell, is 37.6°F (3.1°C), while the average low-temperature is 26.8°F (-2.9°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 86°F (30°C).

What is the average humidity in December in Farrell?

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

How much does it rain in Farrell in December?

In Farrell, Pennsylvania, in December, during 12.7 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

How much does it snow in Farrell in December?

In December, in Farrell, Pennsylvania, it is snowing for 15.5 days. Throughout December, 5.98" (152mm) of snow is accumulated.

What is the month with the shortest days in Farrell?

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

How many hours of daylight does Farrell have in December?

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

When is the sunrise / sunset in December in Farrell?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:53 pm. On the last day of the month, in Farrell, sunrise is at 7:47 am and sunset at 5:03 pm EST.

How long on average sun shines in December in Farrell?

The average sunshine duration in December in Farrell, Pennsylvania, is 2.9h.

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

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

What is the UV index intensity in December in Farrell?

In December, the average daily maximum UV index in Farrell, Pennsylvania, is 1. A UV Index estimate 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
Farrell, PA

Average temperature in December - Farrell, PA
  • Average high temperature in December: 37.6°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 (31.1°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in December
Farrell, PA

Average pressure in December - Farrell, 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).

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Average wind speed in December
Farrell, PA

Average wind speed in December - Farrell, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is July (5mph).

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Average humidity in December
Farrell, PA

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

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May, July and August (78%).

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Average rainfall in December
Farrell, PA

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

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is September (2.2").

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Average rainfall days in December
Farrell, PA

Average rainfall days in December - Farrell, PA
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in December
Farrell, PA

Average snowfall in December - Farrell, PA
  • Average snowfall in December: 5.98"

The month with the highest snowfall is January (8.62").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Farrell, PA

Average snowfall days in December - Farrell, PA
  • Average snowfall days in December: 15.5 days

The month with the highest number of snowfall days is January (20.3 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
Farrell, PA

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

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

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Average sunshine days in December
Farrell, PA

Average sunshine days in December - Farrell, PA
  • Average sunshine days in December: 7.6 days

The month with the most sunshine days is September (12.7 days).
The month with the least sunshine days is February (6 days).

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Average UV index in December
Farrell, PA

Average UV index in December - Farrell, 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).

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Average cloud cover in December
Farrell, PA

Average cloud cover in December - Farrell, PA
  • Average cloud cover in December: 69

The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 35).

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Average visibility in December
Farrell, PA

Average visibility in December - Farrell, PA
  • Average visibility in December: 4mi

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

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Farrell, Pennsylvania, USA

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