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
The start of December signals a decrease in the average high-temperature, transitioning from a chilly 45.1°F (7.3°C) in November to a cold 35.8°F (2.1°C). During December, Brockway experiences an average low-temperature of 25.3°F (-3.7°C) at night.Humidity
The average relative humidity in December is 86%.Rainfall
In Brockway, during December, the rain falls for 11.6 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Brockway, during the entire year, the rain falls for 171.7 days and collects up to 33.27" (845mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Brockway, in December, snow falls for 17.6 days, with typically accumulated 8.5" (216mm) of snow. In Brockway, during the entire year, snow falls for 84 days and aggregates up to 42.56" (1081mm) of snow.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 7:22 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:56 pm EST.
Sunshine
The average sunshine in December in Brockway is 2.7h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 1 in December leads to these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Brockway have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Brockway have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Brockway, PA
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in December
Brockway, 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
Brockway, PA
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Brockway, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in December
Brockway, PA
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is August (2.13").
Average rainfall days in December
Brockway, PA
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is May (19.4 days).
The months with the least rainy days are January and February (8.8 days).
Average snowfall in December
Brockway, PA
- Average snowfall in December: 8.5"
The month with the highest snowfall is January (10.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Brockway, PA
- Average snowfall days in December: 17.6 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brockway, 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 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Brockway, PA
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is September (13.3 days).
The month with the least sunshine days is February (6.6 days).
Average UV index in December
Brockway, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Brockway, PA
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Brockway, PA
- Average visibility in December: 4mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February and December (4mi).
Brockway, Pennsylvania, USA
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