December weather forecast
Penfield, PA

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Weather in December

The first month of the winter, December, is also an icy month in Penfield, Pennsylvania, with an average temperature ranging between min 25.5°F (-3.6°C) and max 36.1°F (2.3°C).

Temperature

Penfield's progression into December involves a drop in the average high-temperature, receding from a chilly 45.7°F (7.6°C) in November to a wintry 36.1°F (2.3°C). Throughout December, Penfield anticipates an average low-temperature of 25.5°F (-3.6°C).

Humidity

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

Rainfall

In Penfield, in December, during 12.6 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In Penfield, during the entire year, the rain falls for 177 days and collects up to 34.29" (871mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Penfield, during December, snow falls for 16.5 days and regularly aggregates up to 7.44" (189mm) of snow. In Penfield, during the entire year, snow falls for 79.7 days and aggregates up to 36.38" (924mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:55 pm EST.

Sunshine

In December, the average sunshine is 2.8h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in Penfield in December?

An average high-temperature, in December, in Penfield, is 36.1°F (2.3°C) and the average low-temperature is 25.5°F (-3.6°C).

What is the average humidity in December in Penfield?

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

How much does it rain in Penfield in December?

In December, in Penfield, Pennsylvania, the rain falls for 12.6 days. Throughout December, 2.95" (75mm) of precipitation is accumulated.

How much does it snow in Penfield in December?

In December, in Penfield, Pennsylvania, it is snowing for 16.5 days. Throughout December, 7.44" (189mm) of snow is accumulated.

What is the month with the shortest days in Penfield?

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

How many hours of daylight does Penfield have in December?

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

When are sunrise and sunset in December in Penfield?

On the first day of December, sunrise is at 7:21 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:55 pm EST.

How many hours of sunshine does Penfield have in December?

In December, the average sunshine duration in Penfield, Pennsylvania, is 2.8h.

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

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

How high is the UV index in December in Penfield?

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

Average temperature in December - Penfield, PA
  • Average high temperature in December: 36.1°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in December
Penfield, PA

Average pressure in December - Penfield, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Penfield, PA

Average wind speed in December - Penfield, 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 (5.5mph).

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Average humidity in December
Penfield, PA

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

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

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Average rainfall in December
Penfield, PA

Average rainfall in December - Penfield, PA
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is November (2.17").

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Average rainfall days in December
Penfield, PA

Average rainfall days in December - Penfield, PA
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in December
Penfield, PA

Average snowfall in December - Penfield, PA
  • Average snowfall in December: 7.44"

The month with the highest snowfall is January (9.25").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Penfield, PA

Average snowfall days in December - Penfield, PA
  • Average snowfall days in December: 16.5 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).

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

Average daylight in December / Average sunshine in December - Penfield, 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: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

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Average sunshine days in December
Penfield, PA

Average sunshine days in December - Penfield, PA
  • Average sunshine days in December: 7.9 days

The month with the most sunshine days is September (13.3 days).
The month with the least sunshine days is February (6.3 days).

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Average UV index in December
Penfield, PA

Average UV index in December - Penfield, 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
Penfield, PA

Average cloud cover in December - Penfield, PA
  • Average cloud cover in December: 72

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).

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Average visibility in December
Penfield, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Penfield, Pennsylvania, USA

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