December weather forecastRicketts Ridge, MD
December
Weather in December
The first month of the winter, December, is still a chilly month in Ricketts Ridge, Maryland, with an average temperature varying between 43.3°F (6.3°C) and 31.3°F (-0.4°C).Temperature
Transition into December subtly marks a drop in the average high-temperature, moderately moving from a fresh 51.8°F (11°C) in November to a frosty 43.3°F (6.3°C). In December, the temperature drops to an average of 31.3°F (-0.4°C) at night.Humidity
The average relative humidity in December is 78%.Rainfall
In Ricketts Ridge, in December, during 10.2 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Ricketts Ridge, during the entire year, the rain falls for 159.1 days and collects up to 31.54" (801mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Ricketts Ridge, in December, during 3.9 snowfall days, 1.69" (43mm) of snow is typically accumulated. Throughout the year, there are 21.2 snowfall days, and 10.55" (268mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:44 pm. On the last day of December, in Ricketts Ridge, sunrise is at 7:27 am and sunset at 4:54 pm EST.
Sunshine
The average sunshine in December is 4.9h.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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ricketts Ridge, MD
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Ricketts 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
Ricketts Ridge, MD
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Ricketts Ridge, MD
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).
Average rainfall in December
Ricketts Ridge, MD
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in December
Ricketts Ridge, MD
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Ricketts Ridge, MD
- Average snowfall in December: 1.69"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ricketts Ridge, MD
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ricketts Ridge, MD
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Ricketts Ridge, MD
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Ricketts 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
Ricketts Ridge, MD
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Ricketts 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).
