December weather forecast
Seminole, PA

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Weather in December

The first month of the winter, December, is also an icy month in Seminole, Pennsylvania, with an average temperature fluctuating between 38.5°F (3.6°C) and 27.3°F (-2.6°C).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from a chilly 48°F (8.9°C) in November to a wintry 38.5°F (3.6°C). Seminole throughout December, experiences an average nighttime temperature of 27.3°F (-2.6°C).

Humidity

The average relative humidity in December is 85%.

Rainfall

In Seminole, in December, during 12.6 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, 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 Seminole, in December, snow falls for 13 days, with typically accumulated 4.69" (119mm) of snow. In Seminole, during the entire year, snow falls for 64.2 days and aggregates up to 24.25" (616mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:41 am and sunset at 4:59 pm EST.

Sunshine

In December, the average sunshine is 3.1h.

UV index

The months with the lowest UV index are January and 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 ordinary person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.

Frequently asked questions

How cold does it get in December?

In Seminole, in December, the average high-temperature is 38.5°F (3.6°C), and the average low-temperature is 27.3°F (-2.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in July is calculated to be 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 85%.

How much does it rain in December?

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

How much does it snow in Seminole in December?

In Seminole, during December, snow falls for 13 days and regularly aggregates up to 4.69" (119mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Seminole have in December?

The average day length in December in Seminole, Pennsylvania, is 9h and 17min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:23 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:59 pm EST.

How long on average sun shines in December?

In Seminole, the average sunshine duration in December is 3.1h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe 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
Seminole, PA

Average temperature in December - Seminole, 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).

Average pressure in December
Seminole, PA

Average pressure in December - Seminole, 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).

Average wind speed in December
Seminole, PA

Average wind speed in December - Seminole, 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).

Average humidity in December
Seminole, PA

Average humidity in December - Seminole, 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%).

Average rainfall in December
Seminole, PA

Average rainfall in December - Seminole, 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").

Average rainfall days in December
Seminole, PA

Average rainfall days in December - Seminole, 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).

Average snowfall in December
Seminole, PA

Average snowfall in December - Seminole, 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").

Average snowfall days in December
Seminole, PA

Average snowfall days in December - Seminole, 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).

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

Average daylight in December / Average sunshine in December - Seminole, 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).

Average sunshine days in December
Seminole, PA

Average sunshine days in December - Seminole, 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).

Average UV index in December
Seminole, PA

Average UV index in December - Seminole, 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).

Average cloud cover in December
Seminole, PA

Average cloud cover in December - Seminole, 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).

Average visibility in December
Seminole, PA

Average visibility in December - Seminole, 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).

Seminole, Pennsylvania, USA

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