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
Brownstown's December weather shows a modest shift in high-temperatures, falling from November's cool 50.4°F (10.2°C) to a wintry 41.5°F (5.3°C). Brownstown usually reports an average low-temperature of 30°F (-1.1°C) during the month of December.Humidity
In December, the average relative humidity is 79%.Rainfall
In Brownstown, in December, during 11.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 161.8 rainfall days, and 30.31" (770mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Brownstown, during December, snow falls for 3.8 days and regularly aggregates up to 1.57" (40mm) of snow. In Brownstown, during the entire year, snow falls for 24.1 days and aggregates up to 11.93" (303mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:49 pm EST.
Sunshine
The average sunshine in December 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. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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 many days does it rain in December in Brownstown?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Brownstown have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Brownstown, PA
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Brownstown, 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
Brownstown, PA
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Brownstown, PA
- Average humidity in December: 79%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Brownstown, PA
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days in December
Brownstown, PA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Brownstown, PA
- Average snowfall in December: 1.57"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Brownstown, PA
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brownstown, 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 24min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Brownstown, PA
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (17.8 days).
The months with the least sunshine days are May and July (11.6 days).
Average UV index in December
Brownstown, PA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (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
Brownstown, PA
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Brownstown, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).
Brownstown, Pennsylvania, USA
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