Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does East Butler have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does East Butler have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
Weather forecast for your location
2. Allow the app to use your location