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
Observing a mild shift, the average high-temperature during December reduces from November's cool 52.7°F (11.5°C) to a frosty 43.7°F (6.5°C). Rolling Ridge records an average nighttime low of 32.4°F (0.2°C) in December.Humidity
In Rolling Ridge, the average relative humidity in December is 77%.Rainfall
In Rolling Ridge, in December, it is raining for 11.3 days, with typically 2.83" (72mm) of accumulated precipitation. In Rolling Ridge, during the entire year, the rain falls for 167.9 days and collects up to 34.69" (881mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Rolling Ridge, in December, snow falls for 3.9 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, there are 21 snowfall days, and 10.91" (277mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Rolling Ridge.On the first day of December in Rolling Ridge, sunrise is at 7:08 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:53 pm EST.
Sunshine
January, February and December, with an average of 5h of sunshine, are months with the least sunshine in Rolling Ridge.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is December in Rolling Ridge?
What is the average humidity in December in Rolling Ridge?
How many days does it rain in December in Rolling Ridge?
How many days does it snow in December in Rolling Ridge?
What is the month with the shortest days in Rolling Ridge?
How many hours of daylight does Rolling Ridge have in December?
What time are sunrise and sunset in December in Rolling Ridge?
What are the months with the least sunshine in Rolling Ridge?
How many hours of sunshine does Rolling Ridge have in December?
When is the lowest UV index in Rolling Ridge?
What is the UV index reading in December in Rolling Ridge?
Average temperature in December
Rolling Ridge, MD
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Rolling Ridge, 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
Rolling Ridge, MD
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Rolling Ridge, MD
- Average humidity in December: 77%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are April and July (73%).
Average rainfall in December
Rolling Ridge, MD
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is August (4.37").
The driest months (with the least rainfall) are January and February (2.28").
Average rainfall days in December
Rolling Ridge, MD
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in December
Rolling Ridge, MD
- Average snowfall in December: 1.69"
The month with the highest snowfall is March (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Rolling Ridge, MD
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (6.1 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
Rolling Ridge, 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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).
Average sunshine days in December
Rolling Ridge, MD
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in December
Rolling Ridge, 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, November and December (UV index 2).
Average cloud cover in December
Rolling Ridge, 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 30).
Average visibility in December
Rolling Ridge, 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).
Rolling Ridge, Maryland, USA
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