December weather forecast
West Mayfield, PA

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Weather in December

The first month of the winter, December, is also a wintry month in West Mayfield, Pennsylvania, with an average temperature fluctuating between 27.3°F (-2.6°C) and 38.3°F (3.5°C).

Temperature

The average high-temperature drops in December, from November's frosty 48.2°F (9°C) to a wintry 38.3°F (3.5°C). In West Mayfield, an average temperature of 27.3°F (-2.6°C) is noted during December nights.

Humidity

In December, the average relative humidity in West Mayfield is 85%.

Rainfall

In West Mayfield, Pennsylvania, in December, during 12.8 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, in West Mayfield, there are 183.3 rainfall days, and 35" (889mm) of precipitation is accumulated.

Snowfall

Months with snowfall in West Mayfield are January through May, October through December. In West Mayfield, in December, during 14.5 snowfall days, 5.31" (135mm) of snow is typically accumulated. Throughout the year, there are 69.5 snowfall days, and 26.93" (684mm) of snow is accumulated.

Daylight

December has the shortest days of the year in West Mayfield, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:54 pm. On the last day of December, in West Mayfield, sunrise is at 7:45 am and sunset at 5:03 pm EST.

Sunshine

In December, the average sunshine in West Mayfield, Pennsylvania, is 3.3h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 1 during December translates into the following guidance:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is it in West Mayfield in December?

In December, the average high-temperature and low-temperature are 38.3°F (3.5°C) and 27.3°F (-2.6°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 86°F (30°C).

What is the average humidity in December in West Mayfield?

In West Mayfield, Pennsylvania, the average relative humidity in December is 85%.

How many days does it rain in December in West Mayfield?

In West Mayfield, in December, it is raining for 12.8 days, with typically 2.83" (72mm) of accumulated precipitation.

How many days does it snow in December in West Mayfield?

In West Mayfield, Pennsylvania, in December, during 14.5 snowfall days, 5.31" (135mm) of snow is typically accumulated.

What is the month with the shortest days in West Mayfield?

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

What is the average length of the day in December in West Mayfield?

The average day length in December in West Mayfield, Pennsylvania, is 9h and 19min.

What time are sunrise and sunset in December in West Mayfield?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:54 pm. On the last day of the month, in West Mayfield, Pennsylvania, sunrise is at 7:45 am and sunset at 5:03 pm EST.

How many hours of sunshine does West Mayfield have in December?

The average sunshine duration in December in West Mayfield is 3.3h.

What is the month with the lowest UV index in West Mayfield?

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

What is the UV index reading in December in West Mayfield?

The average daily maximum UV index in December in West Mayfield is 1. A UV Index reading of 2, and below, represents 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
West Mayfield, PA

Average temperature in December - West Mayfield, PA
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

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Average pressure in December
West Mayfield, PA

Average pressure in December - West Mayfield, 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 (29.94"Hg).

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Average wind speed in December
West Mayfield, PA

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

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
West Mayfield, PA

Average humidity in December - West Mayfield, PA
  • Average humidity in December: 85%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in December
West Mayfield, PA

Average rainfall in December - West Mayfield, PA
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is April (3.62").
The driest month (with the least rainfall) is November (2.24").

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Average rainfall days in December
West Mayfield, PA

Average rainfall days in December - West Mayfield, PA
  • Average rainfall days in December: 12.8 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (10 days).

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Average snowfall in December
West Mayfield, PA

Average snowfall in December - West Mayfield, PA
  • Average snowfall in December: 5.31"

The month with the highest snowfall is February (6.81").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
West Mayfield, PA

Average snowfall days in December - West Mayfield, PA
  • Average snowfall days in December: 14.5 days

The month with the highest number of snowfall days is January (18.6 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
West Mayfield, PA

Average daylight in December / Average sunshine in December - West Mayfield, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in December
West Mayfield, PA

Average sunshine days in December - West Mayfield, PA
  • Average sunshine days in December: 8.6 days

The month with the most sunshine days is November (13.6 days).
The month with the least sunshine days is February (7.3 days).

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Average UV index in December
West Mayfield, PA

Average UV index in December - West Mayfield, 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
West Mayfield, PA

Average cloud cover in December - West Mayfield, PA
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
West Mayfield, PA

Average visibility in December - West Mayfield, PA
  • Average visibility in December: 5mi

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

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West Mayfield, Pennsylvania, USA

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