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 arrival of December is marked by a minor reduction in average high-temperature, sliding from a fresh 55°F (12.8°C) in November to a chilly 46.9°F (8.3°C). Bryantown experiences an average nighttime temperature of 34.5°F (1.4°C) in the month of December.Humidity
In December, the average relative humidity in Bryantown is 77%.Rainfall
In Bryantown, during December, the rain falls for 11.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Bryantown, during the entire year, the rain falls for 151.4 days and collects up to 29.33" (745mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Bryantown, Maryland, in December, snow falls for 2 days, with typically accumulated 1.02" (26mm) of snow. Throughout the year, there are 13.5 snowfall days, and 7.24" (184mm) of snow is accumulated.Daylight
December has the shortest days of the year in Bryantown, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:46 pm. On the last day of December, in Bryantown, sunrise is at 7:24 am and sunset at 4:56 pm EST.
Sunshine
The months with the least sunshine in Bryantown are February and December, with an average of 5h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What are the temperatures in Bryantown in December?
What is the average humidity in December in Bryantown?
How much does it rain in Bryantown in December?
How much does it snow in Bryantown in December?
What is the month with the shortest days in Bryantown?
What is the average length of the day in December in Bryantown?
When are sunrise and sunset in December in Bryantown?
What is the month with the least sunshine in Bryantown?
How many hours of sunshine does Bryantown have in December?
When is the lowest UV index in Bryantown?
How high is the UV index in December in Bryantown?
Average temperature in December
Bryantown, MD
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
Bryantown, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Bryantown, MD
- Average wind speed in December: 6.7mph
The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Bryantown, MD
- Average humidity in December: 77%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March and April (73%).
Average rainfall in December
Bryantown, MD
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in December
Bryantown, MD
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Bryantown, MD
- Average snowfall in December: 1.02"
The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Bryantown, MD
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Bryantown, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in December
Bryantown, MD
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in December
Bryantown, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Bryantown, MD
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Bryantown, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Bryantown, Maryland, USA
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