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
The move into December indicates a slight reduction in the average high-temperature, down from November's fresh 54.5°F (12.5°C) to a frosty 46.6°F (8.1°C). Throughout the month of December, Rolph Landing witnesses an average low-temperature of 35.8°F (2.1°C).Humidity
In Rolph Landing, the average relative humidity in December is 77%.Rainfall
In Rolph Landing, in December, it is raining for 9.9 days, with typically 2.2" (56mm) of accumulated precipitation. In Rolph Landing, during the entire year, the rain falls for 154.5 days and collects up to 28.66" (728mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Rolph Landing, during December, snow falls for 1.3 days and regularly aggregates up to 0.55" (14mm) of snow. Throughout the year, in Rolph Landing, there are 9.1 snowfall days, and 4.21" (107mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December in Rolph Landing, sunrise is at 7:03 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:51 pm EST.
Sunshine
In December, the average sunshine is 5.3h.UV index
The months with the lowest UV index in Rolph Landing are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What is the average December temperature in Rolph Landing?
What is the average humidity in December in Rolph Landing?
How many days does it rain in December in Rolph Landing?
How much does it snow in Rolph Landing in December?
What is the month with the shortest days in Rolph Landing?
How many hours of daylight does Rolph Landing have in December?
When are sunrise and sunset in December in Rolph Landing?
How long on average sun shines in December in Rolph Landing?
What are the months with the lowest UV index in Rolph Landing?
What is the UV index intensity in December in Rolph Landing?
Average temperature in December
Rolph Landing, MD
- Average high temperature in December: 46.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 35.8°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in December
Rolph Landing, MD
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Rolph Landing, MD
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Rolph Landing, MD
- Average humidity in December: 77%
The months with the highest relative humidity are May and August (79%).
The month with the lowest relative humidity is January (73%).
Average rainfall in December
Rolph Landing, MD
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in December
Rolph Landing, MD
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in December
Rolph Landing, MD
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rolph Landing, MD
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rolph Landing, 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 2min
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
Rolph Landing, MD
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in December
Rolph Landing, 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
Rolph Landing, MD
- Average cloud cover in December: 44
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
Rolph Landing, 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).
Rolph Landing, Maryland, USA
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