December weather forecast
Grand View, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Grand View, Maryland, with an average temperature fluctuating between 43.2°F (6.2°C) and 31.3°F (-0.4°C).

Temperature

Grand View's weather subtly changes with the onset of December, barely falling from a cool 52.2°F (11.2°C) in November to a frosty 43.2°F (6.2°C). Throughout the nights in December, Grand View experiences an average low-temperature of 31.3°F (-0.4°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

In December, the rain falls for 9.1 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 130.3 rainfall days, and 15.47" (393mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 2.5 days. Throughout December, 0.47" (12mm) of snow is accumulated. In Grand View, during the entire year, snow falls for 16 days and aggregates up to 4.13" (105mm) of snow.

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 Grand View, sunrise is at 7:27 am and sunset at 4:54 pm EST.

Sunshine

In December, the average sunshine in Grand View is 5h.

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 unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold does it get in Grand View in December?

In Grand View, in December, the average high-temperature is 43.2°F (6.2°C), and the average low-temperature is 31.3°F (-0.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in December in Grand View?

In Grand View, the average relative humidity in December is 78%.

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

In Grand View, Maryland, in December, it is raining for 9.1 days, with typically 1.02" (26mm) of accumulated precipitation.

How much does it snow in Grand View in December?

In December, in Grand View, Maryland, it is snowing for 2.5 days. Throughout December, 0.47" (12mm) of snow is accumulated.

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

With an average of 9h and 24min of daylight, December has the shortest days of the year.

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

The average day length in December in Grand View is 9h and 27min.

When are sunrise and sunset in December in Grand View?

On the first day of December in Grand View, sunrise is at 7:09 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:54 pm EST.

How many hours of sunshine does Grand View have in December?

In Grand View, Maryland, the average sunshine duration in December is 5h.

When is the lowest UV index in Grand View?

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

What is the UV index intensity in December in Grand View?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Grand View, MD

Average temperature in December - Grand View, MD
  • Average high temperature in December: 43.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in December
Grand View, MD

Average pressure in December - Grand View, 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).

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Average wind speed in December
Grand View, MD

Average wind speed in December - Grand View, MD
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in December
Grand View, MD

Average humidity in December - Grand View, 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, April, July and November (75%).

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Average rainfall in December
Grand View, MD

Average rainfall in December - Grand View, MD
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.79").

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Average rainfall days in December
Grand View, MD

Average rainfall days in December - Grand View, MD
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is August (15.1 days).
The months with the least rainy days are January and February (6.8 days).

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Average snowfall in December
Grand View, MD

Average snowfall in December - Grand View, MD
  • Average snowfall in December: 0.47"

The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Grand View, MD

Average snowfall days in December - Grand View, MD
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (4.9 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
Grand View, MD

Average daylight in December / Average sunshine in December - Grand View, MD
  • Average daylight in December: 9h and 2min

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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Grand View, MD

Average sunshine days in December - Grand View, MD
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is May (12.9 days).

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Average UV index in December
Grand View, MD

Average UV index in December - Grand 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, November and December (UV index 2).

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Average cloud cover in December
Grand View, MD

Average cloud cover in December - Grand View, MD
  • Average cloud cover in December: 46

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Grand View, MD

Average visibility in December - Grand View, 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).

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Grand View, Maryland, USA

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