December weather forecast
New Alexandria, PA

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Weather in December

The first month of the winter, December, is also a wintry month in New Alexandria, Pennsylvania, with an average temperature varying between 38.8°F (3.8°C) and 27.5°F (-2.5°C).

Temperature

December's onset brings a slight change in high-temperatures, falling from a frosty 48°F (8.9°C) in November to a cold 38.8°F (3.8°C). December brings an average low-temperature of 27.5°F (-2.5°C) to New Alexandria.

Humidity

In New Alexandria, the average relative humidity in December is 84%.

Rainfall

In New Alexandria, in December, it is raining for 11.5 days, with typically 2.2" (56mm) of accumulated precipitation. In New Alexandria, during the entire year, the rain falls for 173.8 days and collects up to 25.55" (649mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in New Alexandria. In New Alexandria, in December, snow falls for 11.8 days, with typically accumulated 4.17" (106mm) of snow. Throughout the year, there are 58.9 snowfall days, and 18.62" (473mm) of snow is accumulated.

Daylight

December has the shortest days of the year in New Alexandria, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:22 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:01 pm EST.

Sunshine

In New Alexandria, the average sunshine in December is 3.5h.

UV index

The month with the lowest UV index in New Alexandria is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, an average UV index of 1 transforms into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in New Alexandria in December?

During December, New Alexandria experiences an average high-temperature of 38.8°F (3.8°C) and a low-temperature of 27.5°F (-2.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 87.8°F (31°C).

What is the average humidity in December in New Alexandria?

The average relative humidity in December in New Alexandria is 84%.

How much does it rain in New Alexandria in December?

In New Alexandria, during December, the rain falls for 11.5 days and regularly aggregates up to 2.2" (56mm) of precipitation.

How much does it snow in New Alexandria in December?

In New Alexandria, Pennsylvania, during December, snow falls for 11.8 days and regularly aggregates up to 4.17" (106mm) of snow.

What is the month with the shortest days in New Alexandria?

The month with the shortest days in New Alexandria is December, with an average of 9h and 18min of daylight.

How many hours of daylight does New Alexandria have in December?

In New Alexandria, the average day length in December is 9h and 21min.

When are sunrise and sunset in December in New Alexandria?

On the first day of December in New Alexandria, sunrise is at 7:22 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:01 pm EST.

How many hours of sunshine does New Alexandria have in December?

In December, the average sunshine duration is 3.5h.

What is the month with the lowest UV index in New Alexandria?

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

What is the UV index intensity in December in New Alexandria?

The average daily maximum UV index in December in New Alexandria is 1. A UV Index 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
New Alexandria, PA

Average temperature in December - New Alexandria, PA
  • Average high temperature in December: 38.8°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in December
New Alexandria, PA

Average pressure in December - New Alexandria, 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
New Alexandria, PA

Average wind speed in December - New Alexandria, PA
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in December
New Alexandria, PA

Average humidity in December - New Alexandria, PA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, June, July and August (78%).

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Average rainfall in December
New Alexandria, PA

Average rainfall in December - New Alexandria, PA
  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is November (1.38").

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Average rainfall days in December
New Alexandria, PA

Average rainfall days in December - New Alexandria, PA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in December
New Alexandria, PA

Average snowfall in December - New Alexandria, PA
  • Average snowfall in December: 4.17"

The month with the highest snowfall is January (4.96").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
New Alexandria, PA

Average snowfall days in December - New Alexandria, PA
  • Average snowfall days in December: 11.8 days

The month with the highest number of snowfall days is January (17.6 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
New Alexandria, PA

Average daylight in December / Average sunshine in December - New Alexandria, 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 18min).

  • Average sunshine in December: 3h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in December
New Alexandria, PA

Average sunshine days in December - New Alexandria, PA
  • Average sunshine days in December: 9.9 days

The month with the most sunshine days is November (14.4 days).
The month with the least sunshine days is January (7 days).

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Average UV index in December
New Alexandria, PA

Average UV index in December - New Alexandria, PA
  • Average UV index in December: 1

The months with the highest UV index are June and 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
New Alexandria, PA

Average cloud cover in December - New Alexandria, 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 35).

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Average visibility in December
New Alexandria, PA

Average visibility in December - New Alexandria, PA
  • Average visibility in December: 5mi

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

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New Alexandria, Pennsylvania, USA

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