December weather forecastBel Alton, MD
December
Weather in December
December, the first month of the winter in Bel Alton, is also a frosty month, with an average temperature varying between 34.5°F (1.4°C) and 46.9°F (8.3°C).Temperature
December's arrival subtly correlates with a reduction in the average high-temperature, down from a cool 55°F (12.8°C) in November to a frosty 46.9°F (8.3°C). Throughout the December nights, Bel Alton encounters a low-temperature of 34.5°F (1.4°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In December, the rain falls for 11.5 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. In Bel Alton, during the entire year, the rain falls for 151.4 days and collects up to 29.33" (745mm) of precipitation.Snowfall
Months with snowfall in Bel Alton are January through April, November and December. In December, in Bel Alton, it is snowing for 2 days. Throughout December, 1.02" (26mm) of snow is accumulated. In Bel Alton, during the entire year, snow falls for 13.5 days and aggregates up to 7.24" (184mm) of snow.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 7:06 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:57 pm EST.
Sunshine
February and December, with an average of 5h of sunshine, are months with the least sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 2 in December transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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
Bel Alton, MD
- Average daylight in December: 9h and 30min
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
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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
Bel Alton, 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).
