December weather forecast
Rural Valley, PA

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Weather in December

December, the first month of the winter in Rural Valley, is still a cold month, with an average temperature ranging between min 27.3°F (-2.6°C) and max 38.5°F (3.6°C).

Temperature

Rural Valley's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 48°F (8.9°C) to an icy 38.5°F (3.6°C). Throughout December, Rural Valley witnesses a consistent average low-temperature of 27.3°F (-2.6°C).

Humidity

The average relative humidity in December is 85%.

Rainfall

In Rural Valley, during December, the rain falls for 12.6 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, in Rural Valley, there are 182.9 rainfall days, and 34.88" (886mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Rural Valley. In Rural Valley, in December, during 13 snowfall days, 4.69" (119mm) of snow is typically accumulated. Throughout the year, in Rural Valley, there are 64.2 snowfall days, and 24.25" (616mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:50 pm. On the last day of December, in Rural Valley, Pennsylvania, sunrise is at 7:41 am and sunset at 4:59 pm EST.

Sunshine

In December, the average sunshine is 3.1h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. When the Sun is at its strongest around midday, find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

Is it cold in Rural Valley during December?

The high-temperature in Rural Valley, Pennsylvania, during December is 38.5°F (3.6°C) and the low-temperature is 27.3°F (-2.6°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in December in Rural Valley?

The average relative humidity in December in Rural Valley, Pennsylvania, is 85%.

How much does it rain in Rural Valley in December?

In December, in Rural Valley, Pennsylvania, the rain falls for 12.6 days. Throughout December, 2.8" (71mm) of precipitation is accumulated.

How much does it snow in Rural Valley in December?

In Rural Valley, Pennsylvania, in December, during 13 snowfall days, 4.69" (119mm) of snow is typically accumulated.

What is the month with the shortest days in Rural Valley?

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

How many hours of daylight does Rural Valley have in December?

The average day length in December in Rural Valley, Pennsylvania, is 9h and 19min.

What time are sunrise and sunset in December in Rural Valley?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 4:50 pm. On the last day of the month, in Rural Valley, sunrise is at 7:41 am and sunset at 4:59 pm EST.

How many hours of sunshine does Rural Valley have in December?

The average sunshine duration in December in Rural Valley, Pennsylvania, is 3.1h.

When is the lowest UV index in Rural Valley?

The months with the lowest UV index in Rural Valley, Pennsylvania, are January and December, with an average maximum UV index of 1.

How high is the UV index in December in Rural Valley?

In December, the average daily maximum UV index in Rural Valley is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's 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
Rural Valley, PA

Average temperature in December - Rural Valley, PA
  • Average high temperature in December: 38.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in December
Rural Valley, PA

Average pressure in December - Rural Valley, 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
Rural Valley, PA

Average wind speed in December - Rural Valley, PA
  • Average wind speed in December: 7.6mph

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

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Average humidity in December
Rural Valley, PA

Average humidity in December - Rural Valley, PA
  • Average humidity in December: 85%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in December
Rural Valley, PA

Average rainfall in December - Rural Valley, PA
  • Average rainfall in December: 2.8"

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

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Average rainfall days in December
Rural Valley, PA

Average rainfall days in December - Rural Valley, PA
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in December
Rural Valley, PA

Average snowfall in December - Rural Valley, PA
  • Average snowfall in December: 4.69"

The month with the highest snowfall is January (6.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Rural Valley, PA

Average snowfall days in December - Rural Valley, PA
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (18.3 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
Rural Valley, PA

Average daylight in December / Average sunshine in December - Rural Valley, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

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Average sunshine days in December
Rural Valley, PA

Average sunshine days in December - Rural Valley, PA
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is November (14.1 days).
The month with the least sunshine days is February (7 days).

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Average UV index in December
Rural Valley, PA

Average UV index in December - Rural Valley, PA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Rural Valley, PA

Average cloud cover in December - Rural Valley, PA
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Rural Valley, PA

Average visibility in December - Rural Valley, 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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Rural Valley, Pennsylvania, USA

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