December weather forecast
Round View, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Round View, Maryland, with an average temperature fluctuating between 46°F (7.8°C) and 36.5°F (2.5°C).

Temperature

December is marked by a subtle drop in average high-temperatures, transitioning from a fresh 54.5°F (12.5°C) in November to a chilly 46°F (7.8°C). December brings with it a nighttime average temperature of 36.5°F (2.5°C).

Humidity

In December, the average relative humidity in Round View, Maryland, is 75%.

Rainfall

In Round View, in December, it is raining for 7.4 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Round View. In Round View, during December, snow falls for 1.5 days and regularly aggregates up to 0.12" (3mm) of snow. Throughout the year, there are 8.3 snowfall days, and 1.22" (31mm) of snow is accumulated.

Daylight

The month with the shortest days in Round View, Maryland, is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:53 pm EST.

Sunshine

The average sunshine in December is 5.2h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What are the temperatures in Round View in December?

An average high-temperature, in December, in Round View, is 46°F (7.8°C) and the average low-temperature is 36.5°F (2.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 89.6°F (32°C).

What is the average humidity in December in Round View?

In December, the average relative humidity is 75%.

How many days does it rain in December in Round View?

In Round View, Maryland, in December, during 7.4 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How much does it snow in Round View in December?

In December, it is snowing for 1.5 days. Throughout December, 0.12" (3mm) of snow is accumulated.

What is the month with the shortest days in Round View?

December has the shortest days of the year in Round View, Maryland, with an average of 9h and 30min of daylight.

What is the average length of the day in December in Round View?

In December, the average day length in Round View is 9h and 29min.

What time are sunrise and sunset in December in Round View?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:53 pm EST.

How long on average sun shines in December in Round View?

In December, the average sunshine duration in Round View, Maryland, is 5.2h.

What are the months with the lowest UV index in Round View?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Round View.

How high is the UV index in December in Round View?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Round View, MD

Average temperature in December - Round View, MD
  • Average high temperature in December: 46°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in December
Round View, MD

Average pressure in December - Round View, MD
  • Average pressure in December: 30.11"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).

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Average wind speed in December
Round View, MD

Average wind speed in December - Round View, MD
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in December
Round View, MD

Average humidity in December - Round View, 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%).

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Average rainfall in December
Round View, MD

Average rainfall in December - Round View, MD
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in December
Round View, MD

Average rainfall days in December - Round View, MD
  • Average rainfall days in December: 7.4 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall in December
Round View, MD

Average snowfall in December - Round View, MD
  • Average snowfall in December: 0.12"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Round View, MD

Average snowfall days in December - Round View, MD
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Round View, MD

Average daylight in December / Average sunshine in December - Round View, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in December
Round View, MD

Average sunshine days in December - Round View, MD
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

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Average UV index in December
Round View, MD

Average UV index in December - Round View, 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 and December (UV index 2).

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Average cloud cover in December
Round View, MD

Average cloud cover in December - Round View, 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).

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Average visibility in December
Round View, MD

Average visibility in December - Round View, 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).

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Round View, Maryland, USA

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