December weather forecastBrookfield, PA
December
Weather in December
December, the first month of the winter in Brookfield, is still a cold month, with an average temperature fluctuating between 34.5°F (1.4°C) and 24.6°F (-4.1°C).Temperature
The onset of December results in a decrease in the average high-temperature, receding from a chilly 44.1°F (6.7°C) in November to an icy 34.5°F (1.4°C). An average temperature of 24.6°F (-4.1°C) is recorded in Brookfield, Pennsylvania, during the nights in December.Humidity
In Brookfield, the average relative humidity in December is 85%.Rainfall
In Brookfield, in December, it is raining for 12.1 days, with typically 2.2" (56mm) of accumulated precipitation. In Brookfield, during the entire year, the rain falls for 168.3 days and collects up to 28.19" (716mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Brookfield, it is snowing for 16.2 days. Throughout December, 6.02" (153mm) of snow is accumulated. Throughout the year, there are 80.4 snowfall days, and 33.03" (839mm) of snow is accumulated.Daylight
The month with the shortest days in Brookfield is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:49 pm EST.
Sunshine
January, February and December, with an average of 3.1h of sunshine, are months with the least sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Brookfield. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 1 during December translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Brookfield, PA
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Brookfield, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Brookfield, PA
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Brookfield, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and June (78%).
Average rainfall in December
Brookfield, PA
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in December
Brookfield, PA
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in December
Brookfield, PA
- Average snowfall in December: 6.02"
The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Brookfield, PA
- Average snowfall days in December: 16.2 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brookfield, PA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 6min).
Average sunshine days in December
Brookfield, PA
- Average sunshine days in December: 8 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in December
Brookfield, 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
Brookfield, PA
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Brookfield, 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).
