December weather forecast
Sandyville, PA

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Weather in December

December, the first month of the winter in Sandyville, 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

As December commences, the average high-temperature shows a reduction, transitioning from a frosty 48.2°F (9°C) in November to a wintry 38.5°F (3.6°C). Throughout the nights in December, Sandyville experiences an average low-temperature of 27.3°F (-2.6°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 82%.

Rainfall

In December, in Sandyville, the rain falls for 5.6 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. Throughout the year, in Sandyville, Pennsylvania, there are 89.8 rainfall days, and 8.07" (205mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Sandyville, Pennsylvania, in December, during 3.4 snowfall days, 0.71" (18mm) of snow is typically accumulated. In Sandyville, during the entire year, snow falls for 22.7 days and aggregates up to 3.54" (90mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Sandyville.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:41 pm EST.

Sunshine

In December, the average sunshine in Sandyville is 4.6h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, an average UV index of 1 transforms into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is it in Sandyville in December?

December temperatures vary between a high-temperature of 38.5°F (3.6°C) and a low-temperature of 27.3°F (-2.6°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 89.6°F (32°C).

What is the most humid month in Sandyville?

February and December, with an average relative humidity of 82%, are most humid months in Sandyville.

What is the average humidity in December in Sandyville?

In Sandyville, Pennsylvania, the average relative humidity in December is 82%.

How much does it rain in Sandyville in December?

In December, in Sandyville, Pennsylvania, the rain falls for 5.6 days. Throughout December, 0.67" (17mm) of precipitation is accumulated.

How many days does it snow in December in Sandyville?

In Sandyville, during December, snow falls for 3.4 days and regularly aggregates up to 0.71" (18mm) of snow.

What is the month with the shortest days in Sandyville?

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

What is the average length of the day in December in Sandyville?

The average day length in December is 9h and 16min.

When is the sunrise / sunset in December in Sandyville?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:32 pm. On the last day of the month, in Sandyville, Pennsylvania, sunrise is at 7:25 am and sunset at 4:41 pm EST.

How long on average sun shines in December in Sandyville?

The average sunshine duration in December in Sandyville is 4.6h.

When is the lowest UV index in Sandyville?

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

What is the UV index reading in December in Sandyville?

In Sandyville, Pennsylvania, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Sandyville, PA

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

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in December
Sandyville, PA

Average pressure in December - Sandyville, PA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Sandyville, PA

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

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in December
Sandyville, PA

Average humidity in December - Sandyville, PA
  • Average humidity in December: 82%

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Sandyville, PA

Average rainfall in December - Sandyville, PA
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.24").

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Average rainfall days in December
Sandyville, PA

Average rainfall days in December - Sandyville, PA
  • Average rainfall days in December: 5.6 days

The months with the highest number of rainy days are April and May (10.5 days).
The month with the least rainy days is February (4.5 days).

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Average snowfall in December
Sandyville, PA

Average snowfall in December - Sandyville, PA
  • Average snowfall in December: 0.71"

The months with the highest snowfall are January and February (0.91").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Sandyville, PA

Average snowfall days in December - Sandyville, PA
  • Average snowfall days in December: 3.4 days

The month with the highest number of snowfall days is February (7.2 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
Sandyville, PA

Average daylight in December / Average sunshine in December - Sandyville, 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: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in December
Sandyville, PA

Average sunshine days in December - Sandyville, PA
  • Average sunshine days in December: 23.1 days

The month with the most sunshine days is September (23.2 days).
The month with the least sunshine days is April (18 days).

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Average UV index in December
Sandyville, PA

Average UV index in December - Sandyville, PA
  • Average UV index in December: 1

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Sandyville, PA

Average cloud cover in December - Sandyville, PA
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in December
Sandyville, PA

Average visibility in December - Sandyville, PA
  • Average visibility in December: 5mi

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

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Sandyville, Pennsylvania, USA

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