December weather forecast
East Butler, PA

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Weather in December

December, the first month of the winter in East Butler, is also a wintry month, with an average temperature varying between 26.4°F (-3.1°C) and 37.8°F (3.2°C).

Temperature

December's arrival comes with a decrease in the average high-temperature, moving from a chilly 47.3°F (8.5°C) in November to a cold 37.8°F (3.2°C). In East Butler, the nighttime temperature averages to a subzero cold 26.4°F (-3.1°C) during December.

Humidity

In East Butler, the average relative humidity in December is 86%.

Rainfall

In East Butler, in December, during 10.4 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, there are 177.9 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In East Butler, during December, snow falls for 15.6 days and regularly aggregates up to 5.67" (144mm) of snow. Throughout the year, there are 72.7 snowfall days, and 31.93" (811mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:25 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:01 pm EST.

Sunshine

In East Butler, the average sunshine in December is 2.8h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, an average UV index of 1 transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Enhance your sun protection with tightly woven, yet airy clothing. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

Is December cold?

The high-temperature during December is 37.8°F (3.2°C) and the low-temperature is 26.4°F (-3.1°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 86%.

How much does it rain in December?

In East Butler, in December, during 10.4 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 15.6 days. Throughout December, 5.67" (144mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does East Butler have in December?

The average day length in December is 9h and 18min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:25 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:01 pm EST.

How many hours of sunshine does East Butler have in December?

In East Butler, the average sunshine duration in December is 2.8h.

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 intensity in December?

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health threat 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
East Butler, PA

Average temperature in December - East Butler, PA
  • Average high temperature in December: 37.8°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in December: 26.4°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in December
East Butler, PA

Average pressure in December - East Butler, 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 (29.94"Hg).

Average wind speed in December
East Butler, PA

Average wind speed in December - East Butler, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

Average humidity in December
East Butler, PA

Average humidity in December - East Butler, PA
  • Average humidity in December: 86%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April, July and August (78%).

Average rainfall in December
East Butler, PA

Average rainfall in December - East Butler, PA
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is November (2.36").

Average rainfall days in December
East Butler, PA

Average rainfall days in December - East Butler, PA
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in December
East Butler, PA

Average snowfall in December - East Butler, PA
  • Average snowfall in December: 5.67"

The month with the highest snowfall is January (8.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
East Butler, PA

Average snowfall days in December - East Butler, PA
  • Average snowfall days in December: 15.6 days

The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
East Butler, PA

Average daylight in December / Average sunshine in December - East Butler, 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: 2h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in December
East Butler, PA

Average sunshine days in December - East Butler, PA
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is November (13.8 days).
The month with the least sunshine days is February (7.1 days).

Average UV index in December
East Butler, PA

Average UV index in December - East Butler, 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
East Butler, PA

Average cloud cover in December - East Butler, PA
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in December
East Butler, PA

Average visibility in December - East Butler, PA
  • Average visibility in December: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).

East Butler, Pennsylvania, USA

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