December weather forecastSolomons, MD
December
Weather in December
Finally, December concludes the weather cycle in Solomons, Maryland. The sharp dip in temperature and the return of snowfall from November’s 0.24" (6mm) to December’s 0.94" (24mm) prove December as the authentic start of winter. With January just around the corner, Solomons residents can anticipate consistent snowfall and colder temperatures. The re-emergence of colder weather in December marks the full circle of weather transitioning and transforms the landscape into a winter wonderland.Temperature
The arrival of December correlates with a minor temperature reduction, down from November's cool 55.2°F (12.9°C) to a frosty 47.1°F (8.4°C). An average low-temperature of 37.8°F (3.2°C) is recorded in the month of December.Humidity
The average relative humidity in December is 76%.Rainfall
In Solomons, in December, it is raining for 10.5 days, with typically 2.24" (57mm) of accumulated precipitation. In Solomons, during the entire year, the rain falls for 160.6 days and collects up to 34.49" (876mm) of precipitation.Snowfall
Months with snowfall in Solomons are January through April, November and December. In Solomons, in December, during 1.7 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, there are 9.6 snowfall days, and 5.28" (134mm) of snow is accumulated.Ocean temperature
In Solomons, the average seawater temperature in December is 52.5°F (11.4°C).Note: It is risky to swim in 52.5°F (11.4°C). Temperatures beneath 50°F (10°C) induce rapid cold shock and hyperventilation.
Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:55 pm EST.
Sunshine
In Solomons, Maryland, the average sunshine in December is 5.2h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Solomons, MD
- Average high temperature in December: 47.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Solomons, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Solomons, MD
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Solomons, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March and November (73%).
Average rainfall in December
Solomons, MD
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Solomons, MD
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Solomons, MD
- Average snowfall in December: 0.94"
The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Solomons, MD
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Solomons, MD
- Average sea temperature in December: 52.6°F
The best month for swimming (with the highest average sea temperature) is August (78.5°F).
The coldest month (with the lowest average sea temperature) is February (45.6°F).
Average daylight in December /
Average sunshine in December
Solomons, MD
- Average daylight in December: 9h and 36min
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 36min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Solomons, MD
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is August (10.7 days).
Average UV index in December
Solomons, 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
Solomons, MD
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Solomons, 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).
