December weather forecast
Eynon, PA

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Weather in December

December, the first month of the winter in Eynon, is still a cold month, with an average temperature varying between 25°F (-3.9°C) and 35.6°F (2°C).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a chilly 45.5°F (7.5°C) in November to a wintry 35.6°F (2°C). Throughout the nights in December, Eynon experiences an average low-temperature of 25°F (-3.9°C).

Humidity

February and December, with an average relative humidity of 85%, are the most humid months.

Rainfall

In Eynon, in December, during 10.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Eynon, Pennsylvania, during the entire year, the rain falls for 149.5 days and collects up to 25.94" (659mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Eynon, in December, snow falls for 12.4 days, with typically accumulated 4.61" (117mm) of snow. In Eynon, during the entire year, snow falls for 63.2 days and aggregates up to 24.84" (631mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:42 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Eynon, in December, the average high-temperature is 35.6°F (2°C), and the average low-temperature is 25°F (-3.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in July is evaluated at 86°F (30°C).

What is the most humid month?

February and December, with an average relative humidity of 85%, are most humid months.

What is the average humidity in December?

In December, the average relative humidity is 85%.

How much does it rain in December?

In Eynon, in December, during 10.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

How much does it snow in December?

In Eynon, in December, snow falls for 12.4 days, with typically accumulated 4.61" (117mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 14min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of the month, in Eynon, sunrise is at 7:28 am and sunset at 4:42 pm EST.

How many hours of sunshine does Eynon have in December?

In Eynon, the average sunshine duration in December is 3.4h.

When is 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 intensity in December?

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

Average temperature in December - Eynon, PA
  • Average high temperature in December: 35.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in December
Eynon, PA

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

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Eynon, PA

Average wind speed in December - Eynon, PA
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Eynon, PA

Average humidity in December - Eynon, PA
  • Average humidity in December: 85%

The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).

Average rainfall in December
Eynon, PA

Average rainfall in December - Eynon, PA
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is May (2.56").
The driest months (with the least rainfall) are January and September (1.73").

Average rainfall days in December
Eynon, PA

Average rainfall days in December - Eynon, PA
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in December
Eynon, PA

Average snowfall in December - Eynon, PA
  • Average snowfall in December: 4.61"

The month with the highest snowfall is January (5.67").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Eynon, PA

Average snowfall days in December - Eynon, PA
  • Average snowfall days in December: 12.4 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Eynon, PA
  • Average daylight in December: 9h and 1min

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 12min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in December
Eynon, PA

Average sunshine days in December - Eynon, PA
  • Average sunshine days in December: 11.1 days

The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (10 days).

Average UV index in December
Eynon, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Eynon, PA

Average cloud cover in December - Eynon, PA
  • Average cloud cover in December: 66

The months with the most cloud cover are February and December (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in December
Eynon, PA

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

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

Eynon, Pennsylvania, USA

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