December weather forecastCedar Hills, MD
December
Weather in December
December, the first month of the winter in Cedar Hills, is also a wintry month, with an average temperature ranging between min 29.3°F (-1.5°C) and max 41.5°F (5.3°C).Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a cool 50.7°F (10.4°C) in November to a cold 41.5°F (5.3°C). December brings an average low-temperature of 29.3°F (-1.5°C) to Cedar Hills.Humidity
In Cedar Hills, the average relative humidity in December is 78%.Rainfall
In December, the rain falls for 11.2 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. In Cedar Hills, during the entire year, the rain falls for 164.7 days and collects up to 29.17" (741mm) of precipitation.Snowfall
Months with snowfall in Cedar Hills are January through April, October through December. In Cedar Hills, during December, snow falls for 5.2 days and regularly aggregates up to 2.17" (55mm) of snow. In Cedar Hills, during the entire year, snow falls for 28.6 days and aggregates up to 14.65" (372mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:56 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Cedar Hills are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cedar Hills, MD
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Cedar Hills, 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
Cedar Hills, MD
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Cedar Hills, MD
- Average humidity in December: 78%
The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in December
Cedar Hills, MD
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in December
Cedar Hills, MD
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Cedar Hills, MD
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Cedar Hills, MD
- Average snowfall days in December: 5.2 days
The month with the highest number of snowfall days is January (9 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
Cedar Hills, 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
Cedar Hills, MD
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Cedar Hills, MD
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Cedar Hills, MD
- Average cloud cover in December: 49
The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Cedar Hills, MD
- Average visibility in December: 6mi
The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).
