December weather forecast
Grand View Park, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Grand View Park, Maryland, with an average temperature varying between 34.5°F (1.4°C) and 45.5°F (7.5°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from a cool 53.6°F (12°C) in November to a chilly 45.5°F (7.5°C). During December, an average low-temperature of 34.5°F (1.4°C) is observed.

Humidity

In Grand View Park, the average relative humidity in December is 76%.

Rainfall

In Grand View Park, in December, during 10.4 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 157.2 rainfall days, and 30.47" (774mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Grand View Park, in December, during 2.1 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Grand View Park, during the entire year, snow falls for 11.9 days and aggregates up to 5.75" (146mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of December, in Grand View Park, sunrise is at 7:25 am and sunset at 4:54 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Frequently asked questions

What is the usual temperature for Grand View Park in December?

The average high-temperature, in December, in Grand View Park, is 45.5°F (7.5°C), while the average low-temperature is 34.5°F (1.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 91.4°F (33°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How much does it rain in Grand View Park in December?

In December, the rain falls for 10.4 days. Throughout December, 2.32" (59mm) of precipitation is accumulated.

How much does it snow in Grand View Park in December?

In Grand View Park, during December, snow falls for 2.1 days and regularly aggregates up to 0.39" (10mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Grand View Park have in December?

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

What time are sunrise and sunset in December in Grand View Park?

On the first day of December, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:54 pm EST.

How long on average sun shines in December in Grand View Park?

In December, the average sunshine duration is 5.2h.

When is the lowest UV index in Grand View Park?

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

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

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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 Park, MD

Average temperature in December - Grand View Park, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 34.5°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 (27.7°F).

Average pressure in December
Grand View Park, MD

Average pressure in December - Grand View Park, 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
Grand View Park, MD

Average wind speed in December - Grand View Park, MD
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in December
Grand View Park, MD

Average humidity in December - Grand View Park, MD
  • Average humidity in December: 76%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are March, April and July (72%).

Average rainfall in December
Grand View Park, MD

Average rainfall in December - Grand View Park, MD
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in December
Grand View Park, MD

Average rainfall days in December - Grand View Park, MD
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and November (8.4 days).

Average snowfall in December
Grand View Park, MD

Average snowfall in December - Grand View Park, MD
  • Average snowfall in December: 0.39"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Grand View Park, MD

Average snowfall days in December - Grand View Park, MD
  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is January (3.8 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
Grand View Park, MD

Average daylight in December / Average sunshine in December - Grand View Park, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in December
Grand View Park, MD

Average sunshine days in December - Grand View Park, MD
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19.9 days).
The months with the least sunshine days are May and July (10.8 days).

Average UV index in December
Grand View Park, MD

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

Average cloud cover in December
Grand View Park, MD

Average cloud cover in December - Grand View Park, 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
Grand View Park, MD

Average visibility in December - Grand View Park, 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).

Grand View Park, Maryland, USA

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