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 brings a slight decrease in temperature, down from a fresh 50.4°F (10.2°C) in November to an icy 41.5°F (5.3°C). December brings with it a nighttime average temperature of 30°F (-1.1°C) in Bally.Humidity
The average relative humidity in December is 80%.Rainfall
In Bally, Pennsylvania, in December, during 10.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Bally, during the entire year, the rain falls for 155.5 days and collects up to 28.15" (715mm) of precipitation.Snowfall
Months with snowfall in Bally, Pennsylvania, are January through May, October through December. In Bally, in December, snow falls for 4.1 days, with typically accumulated 2.01" (51mm) of snow. Throughout the year, in Bally, Pennsylvania, there are 27 snowfall days, and 12.52" (318mm) of snow is accumulated.Daylight
December has the shortest days of the year in Bally, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:46 pm EST.
Sunshine
In December, the average sunshine in Bally is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bally. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
How cold is it in Bally in December?
What is the average humidity in December in Bally?
How many days does it rain in December in Bally?
How much does it snow in Bally in December?
What is the month with the shortest days in Bally?
How many hours of daylight does Bally have in December?
When are sunrise and sunset in December in Bally?
How long on average sun shines in December in Bally?
When is the lowest UV index in Bally?
How high is the UV index in December in Bally?
Average temperature in December
Bally, PA
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Bally, PA
- Average pressure in December: 30.09"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
Bally, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Bally, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in December
Bally, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Bally, PA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in December
Bally, PA
- Average snowfall in December: 2.01"
The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bally, PA
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bally, 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 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Bally, PA
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is April (12 days).
Average UV index in December
Bally, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Bally, PA
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Bally, PA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, May, September, October and December (5mi).
Bally, Pennsylvania, USA
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