December weather forecast
Valley View, MD

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Weather in December

December, the first month of the winter in Valley View, is still a chilly month, with temperature in the range of an average high of 43.9°F (6.6°C) and an average low of 33.1°F (0.6°C).

Temperature

With December's arrival, Valley View's weather changes as the average high-temperature falls from a cool 52.9°F (11.6°C) in November to a chilly 43.9°F (6.6°C). Valley View's average low-temperature in the month of December is recorded at a wintry 33.1°F (0.6°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

In December, the rain falls for 7 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. In Valley View, during the entire year, the rain falls for 102.3 days and collects up to 9.25" (235mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In December, it is snowing for 2 days. Throughout December, 0.24" (6mm) of snow is accumulated. In Valley View, during the entire year, snow falls for 12.1 days and aggregates up to 1.81" (46mm) 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 7:08 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:54 pm EST.

Sunshine

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

UV index

The months with the lowest UV index 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 exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Valley View, records 43.9°F (6.6°C), while the low-temperature is 33.1°F (0.6°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In Valley View, in December, it is raining for 7 days, with typically 0.75" (19mm) of accumulated precipitation.

How many days does it snow in December?

In Valley View, in December, during 2 snowfall days, 0.24" (6mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Valley View have in December?

The average day length in December is 9h and 28min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:08 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:54 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 5h.

When is the lowest UV index?

January, February, 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 December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk 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
Valley View, MD

Average temperature in December - Valley View, MD
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in December
Valley View, MD

Average pressure in December - Valley 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).

Average wind speed in December
Valley View, MD

Average wind speed in December - Valley View, MD
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in December
Valley View, MD

Average humidity in December - Valley View, MD
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Valley View, MD

Average rainfall in December - Valley View, MD
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in December
Valley View, MD

Average rainfall days in December - Valley View, MD
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in December
Valley View, MD

Average snowfall in December - Valley View, MD
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Valley View, MD

Average snowfall days in December - Valley View, MD
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Valley 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Valley View, MD

Average sunshine days in December - Valley View, MD
  • Average sunshine days in December: 21.9 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (15.2 days).

Average UV index in December
Valley View, MD

Average UV index in December - Valley 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).

Average cloud cover in December
Valley View, MD

Average cloud cover in December - Valley View, MD
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in December
Valley View, MD

Average visibility in December - Valley 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).

Valley View, Maryland, USA

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