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
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a cool 53.8°F (12.1°C) in November to a frosty 45.5°F (7.5°C). In December, Rockwood Beach encounters an average low-temperature of 34.7°F (1.5°C) during the night.Humidity
In Rockwood Beach, the average relative humidity in December is 75%.Rainfall
In Rockwood Beach, Maryland, during December, the rain falls for 11.4 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Rockwood Beach, during the entire year, the rain falls for 156.2 days and collects up to 31.34" (796mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Rockwood Beach. In Rockwood Beach, in December, snow falls for 2.4 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, there are 14 snowfall days, and 6.14" (156mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December in Rockwood Beach, sunrise is at 7:06 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:53 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the average December temperature in Rockwood Beach?
What is the average humidity in December in Rockwood Beach?
How much does it rain in Rockwood Beach in December?
How many days does it snow in December in Rockwood Beach?
What is the month with the shortest days in Rockwood Beach?
How many hours of daylight does Rockwood Beach have in December?
What time are sunrise and sunset in December in Rockwood Beach?
What is the month with the least sunshine in Rockwood Beach?
How many hours of sunshine does Rockwood Beach have in December?
What are the months with the lowest UV index in Rockwood Beach?
What is the UV index intensity in December in Rockwood Beach?
Average temperature in December
Rockwood Beach, MD
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
Rockwood Beach, 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
Rockwood Beach, MD
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Rockwood Beach, MD
- Average humidity in December: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall in December
Rockwood Beach, MD
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in December
Rockwood Beach, MD
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Rockwood Beach, MD
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Rockwood Beach, MD
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (4.4 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
Rockwood Beach, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Rockwood Beach, MD
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Rockwood Beach, 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
Rockwood Beach, MD
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Rockwood Beach, 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).
Rockwood Beach, Maryland, USA
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