December weather forecastWaldorf, MD
December
Weather in December
The first month of the winter, December, is still a chilly month in Waldorf, Maryland, with an average temperature varying between 34.5°F (1.4°C) and 46.9°F (8.3°C).Temperature
With the onset of December, Waldorf's average high-temperature slightly adjusts, moderately receding from November's cool 55°F (12.8°C) to a chilly 46.9°F (8.3°C). Waldorf experiences an average low-temperature of 34.5°F (1.4°C) in the month of December.Humidity
In Waldorf, the average relative humidity in December is 77%.Rainfall
In Waldorf, in December, it is raining for 11.5 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 151.4 rainfall days, and 29.33" (745mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Waldorf, in December, snow falls for 2 days, with typically accumulated 1.02" (26mm) of snow. In Waldorf, during the entire year, snow falls for 13.5 days and aggregates up to 7.24" (184mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:56 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 5h of 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 minimal health vulnerability from unsafe exposure to UV radiation for average individuals.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. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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
Waldorf, 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).
