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 transition to December results in a modest reduction in average high-temperature, moving from a fresh 54.1°F (12.3°C) in November to a chilly 45.5°F (7.5°C). During December nights, Glenarden records an average temperature of 34.3°F (1.3°C).Humidity
May, October and December, with an average relative humidity of 76%, are the most humid months in Glenarden, Maryland.Rainfall
In Glenarden, in December, during 9.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.Snowfall
January through April and December are months with snowfall. December is the first month it typically snows in Glenarden. Throughout December, in the average 2.4 snowfall days, it receives 0.67" (17mm) of snow. Throughout the year, there are 13.5 snowfall days, and 7.2" (183mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:07 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:55 pm EST.
Sunshine
The average sunshine in December in Glenarden is 5.1h.UV index
The months with the lowest UV index in Glenarden are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What is the usual temperature for Glenarden in December?
What are the most humid months in Glenarden?
What is the average humidity in December in Glenarden?
How much does it rain in Glenarden in December?
When does it start snowing in Glenarden?
What is the month with the shortest days in Glenarden?
How many hours of daylight does Glenarden have in December?
What time are sunrise and sunset in December in Glenarden?
How long on average sun shines in December in Glenarden?
What is the month with the lowest UV index in Glenarden?
What is the UV index intensity in December in Glenarden?
Average temperature in December
Glenarden, MD
- Average high temperature in December: 45.5°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 (39.9°F).
- Average low temperature in December: 34.3°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in December
Glenarden, 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 (29.94"Hg).
Average wind speed in December
Glenarden, MD
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Glenarden, MD
- Average humidity in December: 76%
The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in December
Glenarden, MD
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in December
Glenarden, MD
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).
Average snowfall in December
Glenarden, MD
- Average snowfall in December: 0.67"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in December
Glenarden, MD
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (4.1 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
Glenarden, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Glenarden, MD
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in December
Glenarden, 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 and December (UV index 2).
Average cloud cover in December
Glenarden, MD
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Glenarden, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Glenarden, Maryland, USA
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