December weather forecast
Whiteland Crest, PA

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Weather in December

December, the first month of the winter in Whiteland Crest, is also a frosty month, with an average temperature varying between 42.8°F (6°C) and 31.3°F (-0.4°C).

Temperature

The onset of December brings a small change in high-temperatures, falling from a fresh 52°F (11.1°C) in November to a frosty 42.8°F (6°C). The average temperature during December nights is registered at a freezing cold 31.3°F (-0.4°C).

Humidity

The average relative humidity in December in Whiteland Crest is 78%.

Rainfall

In December, in Whiteland Crest, the rain falls for 8.3 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 128.5 rainfall days, and 14.92" (379mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In Whiteland Crest, during December, snow falls for 2.5 days and regularly aggregates up to 0.59" (15mm) of snow. In Whiteland Crest, Pennsylvania, during the entire year, snow falls for 18.1 days and aggregates up to 5.43" (138mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:47 pm EST.

Sunshine

The average sunshine in December is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Whiteland Crest. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

How cold does it get in Whiteland Crest in December?

The average high-temperature, in December, in Whiteland Crest, is 42.8°F (6°C), while the average low-temperature is 31.3°F (-0.4°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December in Whiteland Crest?

In December, the average relative humidity is 78%.

How much does it rain in Whiteland Crest in December?

In Whiteland Crest, Pennsylvania, in December, during 8.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

How much does it snow in Whiteland Crest in December?

In December, in Whiteland Crest, it is snowing for 2.5 days. Throughout December, 0.59" (15mm) of snow is accumulated.

What is the month with the shortest days in Whiteland Crest?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Whiteland Crest.

How many hours of daylight does Whiteland Crest have in December?

In Whiteland Crest, the average day length in December is 9h and 23min.

When are sunrise and sunset in December in Whiteland Crest?

On the first day of December in Whiteland Crest, Pennsylvania, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:47 pm EST.

How long on average sun shines in December in Whiteland Crest?

The average sunshine duration in December in Whiteland Crest, Pennsylvania, is 4.8h.

What are the months with the lowest UV index in Whiteland Crest?

The months with the lowest UV index in Whiteland Crest are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Whiteland Crest?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Whiteland Crest, PA

Average temperature in December - Whiteland Crest, PA
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure in December
Whiteland Crest, PA

Average pressure in December - Whiteland Crest, PA
  • Average pressure in December: 30.1"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
Whiteland Crest, PA

Average wind speed in December - Whiteland Crest, PA
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Whiteland Crest, PA

Average humidity in December - Whiteland Crest, PA
  • Average humidity in December: 78%

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Whiteland Crest, PA

Average rainfall in December - Whiteland Crest, PA
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.83").

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Average rainfall days in December
Whiteland Crest, PA

Average rainfall days in December - Whiteland Crest, PA
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in December
Whiteland Crest, PA

Average snowfall in December - Whiteland Crest, PA
  • Average snowfall in December: 0.59"

The month with the highest snowfall is March (1.54").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Whiteland Crest, PA

Average snowfall days in December - Whiteland Crest, PA
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (5.5 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
Whiteland Crest, PA

Average daylight in December / Average sunshine in December - Whiteland Crest, 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Whiteland Crest, PA

Average sunshine days in December - Whiteland Crest, PA
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.1 days).

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Average UV index in December
Whiteland Crest, PA

Average UV index in December - Whiteland Crest, 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, March, November and December (UV index 2).

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Average cloud cover in December
Whiteland Crest, PA

Average cloud cover in December - Whiteland Crest, PA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Whiteland Crest, PA

Average visibility in December - Whiteland Crest, PA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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Whiteland Crest, Pennsylvania, USA

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