December weather forecast
East Washington, PA

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Weather in December

The first month of the winter, December, is also a wintry month in East Washington, Pennsylvania, with temperature in the range of an average high of 40.1°F (4.5°C) and an average low of 28.6°F (-1.9°C).

Temperature

East Washington's December weather shows a moderate shift in high-temperatures, falling from November's frosty 49.5°F (9.7°C) to a wintry 40.1°F (4.5°C). In the month of December, the nighttime temperature in East Washington dips to a steady average of 28.6°F (-1.9°C).

Humidity

In East Washington, the average relative humidity in December is 84%.

Rainfall

In December, the rain falls for 9.4 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. In East Washington, Pennsylvania, during the entire year, the rain falls for 143 days and collects up to 14.8" (376mm) of precipitation.

Snowfall

Months with snowfall in East Washington are January through May, October through December. In East Washington, during December, snow falls for 6.5 days and regularly aggregates up to 0.83" (21mm) of snow. In East Washington, during the entire year, snow falls for 33.5 days and aggregates up to 4.88" (124mm) of snow.

Daylight

December has the shortest days of the year in East Washington, Pennsylvania, with an average of 9h and 24min of daylight.
On the first day of December in East Washington, sunrise is at 7:24 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:05 pm EST.

Sunshine

In East Washington, the average sunshine in December is 3.5h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, an average UV index of 1 transforms into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

Is it cold in East Washington during December?

The average high-temperature and low-temperature in East Washington during December are 40.1°F (4.5°C) and 28.6°F (-1.9°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December in East Washington?

In December, the average relative humidity in East Washington, Pennsylvania, is 84%.

How much does it rain in East Washington in December?

In East Washington, in December, during 9.4 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

How much does it snow in East Washington in December?

In East Washington, Pennsylvania, in December, snow falls for 6.5 days, with typically accumulated 0.83" (21mm) of snow.

What is the month with the shortest days in East Washington?

December has the shortest days of the year in East Washington, Pennsylvania, with an average of 9h and 24min of daylight.

How many hours of daylight does East Washington have in December?

In December, the average day length in East Washington, Pennsylvania, is 9h and 22min.

What time are sunrise and sunset in December in East Washington?

On the first day of December, sunrise is at 7:24 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:05 pm EST.

How long on average sun shines in December in East Washington?

The average sunshine duration in December is 3.5h.

What is the month with the lowest UV index in East Washington?

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

How high is the UV index in December in East Washington?

The average daily maximum UV index in December in East Washington is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
East Washington, PA

Average temperature in December - East Washington, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in December
East Washington, PA

Average pressure in December - East Washington, PA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
East Washington, PA

Average wind speed in December - East Washington, PA
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in December
East Washington, PA

Average humidity in December - East Washington, PA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in December
East Washington, PA

Average rainfall in December - East Washington, PA
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is July (1.65").
The driest months (with the least rainfall) are January and November (0.94").

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Average rainfall days in December
East Washington, PA

Average rainfall days in December - East Washington, PA
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in December
East Washington, PA

Average snowfall in December - East Washington, PA
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
East Washington, PA

Average snowfall days in December - East Washington, PA
  • Average snowfall days in December: 6.5 days

The month with the highest number of snowfall days is January (9.8 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
East Washington, PA

Average daylight in December / Average sunshine in December - East Washington, 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: 3h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in December
East Washington, PA

Average sunshine days in December - East Washington, PA
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in December
East Washington, PA

Average UV index in December - East Washington, PA
  • Average UV index in December: 1

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

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Average cloud cover in December
East Washington, PA

Average cloud cover in December - East Washington, PA
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in December
East Washington, PA

Average visibility in December - East Washington, PA
  • Average visibility in December: 5mi

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

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East Washington, Pennsylvania, USA

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