December weather forecast
Sygan, PA

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Weather in December

The first month of the winter, December, is also an icy month in Sygan, Pennsylvania, with an average temperature varying between 28.4°F (-2°C) and 39.7°F (4.3°C).

Temperature

December indicates a shift in the average high-temperature, from November's frosty 49.3°F (9.6°C) to a wintry 39.7°F (4.3°C). Sygan's average low-temperature during December nights is observed to be a subzero cold 28.4°F (-2°C).

Humidity

In December, the average relative humidity in Sygan is 83%.

Rainfall

In Sygan, in December, during 8.2 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, in Sygan, Pennsylvania, there are 132.6 rainfall days, and 11.5" (292mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Sygan are January through April, November and December. In Sygan, Pennsylvania, in December, snow falls for 6.4 days, with typically accumulated 0.59" (15mm) of snow. In Sygan, Pennsylvania, during the entire year, snow falls for 32.5 days and aggregates up to 3.66" (93mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of December, in Sygan, Pennsylvania, sunrise is at 7:43 am and sunset at 5:04 pm EST.

Sunshine

In Sygan, the average sunshine in December is 3.4h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a regular UV index of 1 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

Is it cold in Sygan during December?

The average high-temperature, in December, in Sygan, is 39.7°F (4.3°C), while the average low-temperature is 28.4°F (-2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in December in Sygan?

In Sygan, the average relative humidity in December is 83%.

How much does it rain in Sygan in December?

In Sygan, in December, it is raining for 8.2 days, with typically 0.87" (22mm) of accumulated precipitation.

How many days does it snow in December in Sygan?

In Sygan, in December, snow falls for 6.4 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days in Sygan?

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

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

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

What time are sunrise and sunset in December in Sygan?

On the first day of December in Sygan, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:04 pm EST.

How long on average sun shines in December in Sygan?

The average sunshine duration in December in Sygan is 3.4h.

What is the month with the lowest UV index in Sygan?

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

How high is the UV index in December in Sygan?

In Sygan, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Sygan, PA

Average temperature in December - Sygan, PA
  • Average high temperature in December: 39.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in December
Sygan, PA

Average pressure in December - Sygan, PA
  • Average pressure in December: 30.11"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
Sygan, PA

Average wind speed in December - Sygan, PA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in December
Sygan, PA

Average humidity in December - Sygan, PA
  • Average humidity in December: 83%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).

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Average rainfall in December
Sygan, PA

Average rainfall in December - Sygan, PA
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is November (0.67").

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Average rainfall days in December
Sygan, PA

Average rainfall days in December - Sygan, PA
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (6.4 days).

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Average snowfall in December
Sygan, PA

Average snowfall in December - Sygan, PA
  • Average snowfall in December: 0.59"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Sygan, PA

Average snowfall days in December - Sygan, PA
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Sygan, PA

Average daylight in December / Average sunshine in December - Sygan, 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 2min

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
Sygan, PA

Average sunshine days in December - Sygan, PA
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.2 days).

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Average UV index in December
Sygan, PA

Average UV index in December - Sygan, 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
Sygan, PA

Average cloud cover in December - Sygan, 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
Sygan, PA

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

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

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Sygan, Pennsylvania, USA

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