December weather forecast
Glen Ashton Farms, PA

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Weather in December

The first month of the winter, December, is also a frosty month in Glen Ashton Farms, Pennsylvania, with an average temperature varying between 44.2°F (6.8°C) and 32.5°F (0.3°C).

Temperature

The beginning of December brings a minor change in the average high-temperature, shifting from a cool 52.7°F (11.5°C) in November to a chilly 44.2°F (6.8°C). Nighttime temperature in Glen Ashton Farms, Pennsylvania, experiences an average drop to a wintry 32.5°F (0.3°C) in December.

Humidity

February, October and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

December is the month with the most rainfall in Glen Ashton Farms. Rain falls for 11 days and accumulates 2.99" (76mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Glen Ashton Farms, in December, during 3.1 snowfall days, 1.18" (30mm) of snow is typically accumulated. In Glen Ashton Farms, during the entire year, snow falls for 19.1 days and aggregates up to 8.9" (226mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of December, in Glen Ashton Farms, sunrise is at 7:21 am and sunset at 4:44 pm EST.

Sunshine

In December, the average sunshine is 5h.

UV index

The months with the lowest UV index in Glen Ashton Farms are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a daily UV index of 2 turns 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. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

How cold does it get in Glen Ashton Farms in December?

Glen Ashton Farms in December has an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 32.5°F (0.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 91.4°F (33°C).

What are the most humid months in Glen Ashton Farms?

February, October and December, with an average relative humidity of 77%, are most humid months in Glen Ashton Farms.

What is the average humidity in December in Glen Ashton Farms?

In Glen Ashton Farms, Pennsylvania, the average relative humidity in December is 77%.

What is the rainiest month in Glen Ashton Farms?

The month with the most rainfall is December, when the rain falls for 11 days and typically aggregates up to 2.99" (76mm) of precipitation.

How many days does it rain in December in Glen Ashton Farms?

In Glen Ashton Farms, in December, it is raining for 11 days, with typically 2.99" (76mm) of accumulated precipitation.

How much does it snow in Glen Ashton Farms in December?

In Glen Ashton Farms, Pennsylvania, in December, during 3.1 snowfall days, 1.18" (30mm) of snow is typically accumulated.

What is the month with the shortest days in Glen Ashton Farms?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Glen Ashton Farms, Pennsylvania.

How many hours of daylight does Glen Ashton Farms have in December?

In Glen Ashton Farms, Pennsylvania, the average day length in December is 9h and 23min.

What time are sunrise and sunset in December in Glen Ashton Farms?

On the first day of December in Glen Ashton Farms, Pennsylvania, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:44 pm EST.

How long on average sun shines in December in Glen Ashton Farms?

In Glen Ashton Farms, the average sunshine duration in December is 5h.

What are the months with the lowest UV index in Glen Ashton Farms?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Glen Ashton Farms?

The average daily maximum UV index in December in Glen Ashton Farms, Pennsylvania, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Glen Ashton Farms, PA

Average temperature in December - Glen Ashton Farms, PA
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 32.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in December
Glen Ashton Farms, PA

Average pressure in December - Glen Ashton Farms, 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 (29.93"Hg).

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Average wind speed in December
Glen Ashton Farms, PA

Average wind speed in December - Glen Ashton Farms, PA
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Glen Ashton Farms, PA

Average humidity in December - Glen Ashton Farms, PA
  • Average humidity in December: 77%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Glen Ashton Farms, PA

Average rainfall in December - Glen Ashton Farms, PA
  • Average rainfall in December: 2.99"

The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in December
Glen Ashton Farms, PA

Average rainfall days in December - Glen Ashton Farms, PA
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in December
Glen Ashton Farms, PA

Average snowfall in December - Glen Ashton Farms, PA
  • Average snowfall in December: 1.18"

The month with the highest snowfall is March (2.95").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Glen Ashton Farms, PA

Average snowfall days in December - Glen Ashton Farms, PA
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Glen Ashton Farms, PA

Average daylight in December / Average sunshine in December - Glen Ashton Farms, PA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Glen Ashton Farms, PA

Average sunshine days in December - Glen Ashton Farms, PA
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in December
Glen Ashton Farms, PA

Average UV index in December - Glen Ashton Farms, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Glen Ashton Farms, PA

Average cloud cover in December - Glen Ashton Farms, PA
  • Average cloud cover in December: 48

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Glen Ashton Farms, PA

Average visibility in December - Glen Ashton Farms, PA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Glen Ashton Farms, Pennsylvania, USA

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