December weather forecast
Wheaton Crest, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Wheaton Crest, Maryland, with an average temperature fluctuating between 45.3°F (7.4°C) and 32.9°F (0.5°C).

Temperature

Wheaton Crest's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's fresh 53.4°F (11.9°C) to a frosty 45.3°F (7.4°C). December generally records an average low-temperature of 32.9°F (0.5°C).

Humidity

The months with the highest humidity are May, October and December, with an average relative humidity of 76%.

Rainfall

In Wheaton Crest, during December, the rain falls for 10.2 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, there are 160.9 rainfall days, and 32.99" (838mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Wheaton Crest, in December, during 2.9 snowfall days, 1.38" (35mm) of snow is typically accumulated. In Wheaton Crest, during the entire year, snow falls for 17.1 days and aggregates up to 10.2" (259mm) of snow.

Daylight

The month with the shortest days in Wheaton Crest is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:55 pm EST.

Sunshine

In December, the average sunshine is 5.1h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Frequently asked questions

What are December temperatures?

Wheaton Crest in December has an average high-temperature of 45.3°F (7.4°C) and an average low-temperature of 32.9°F (0.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 93.2°F (34°C).

What are the most humid months?

May, October and December, with an average relative humidity of 76%, are most humid months.

What is the average humidity in December?

In Wheaton Crest, the average relative humidity in December is 76%.

How many days does it rain in December?

In Wheaton Crest, in December, during 10.2 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Wheaton Crest, in December, during 2.9 snowfall days, 1.38" (35mm) of snow is typically accumulated.

What is the month with the shortest days in Wheaton Crest?

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

What is the average length of the day in December?

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

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:55 pm EST.

How many hours of sunshine does Wheaton Crest have in December?

In December, the average sunshine duration is 5.1h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Wheaton Crest, MD

Average temperature in December - Wheaton Crest, MD
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in December
Wheaton Crest, MD

Average pressure in December - Wheaton Crest, 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 (29.95"Hg).

Average wind speed in December
Wheaton Crest, MD

Average wind speed in December - Wheaton Crest, MD
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Wheaton Crest, MD

Average humidity in December - Wheaton Crest, MD
  • Average humidity in December: 76%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in December
Wheaton Crest, MD

Average rainfall in December - Wheaton Crest, MD
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in December
Wheaton Crest, MD

Average rainfall days in December - Wheaton Crest, MD
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in December
Wheaton Crest, MD

Average snowfall in December - Wheaton Crest, MD
  • Average snowfall in December: 1.38"

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Wheaton Crest, MD

Average snowfall days in December - Wheaton Crest, MD
  • Average snowfall days in December: 2.9 days

The months with the highest number of snowfall days are January and February (5.1 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
Wheaton Crest, MD

Average daylight in December / Average sunshine in December - Wheaton Crest, 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).

Average sunshine days in December
Wheaton Crest, MD

Average sunshine days in December - Wheaton Crest, MD
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in December
Wheaton Crest, MD

Average UV index in December - Wheaton Crest, 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
Wheaton Crest, MD

Average cloud cover in December - Wheaton Crest, 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 31).

Average visibility in December
Wheaton Crest, MD

Average visibility in December - Wheaton Crest, 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).

Wheaton Crest, Maryland, USA

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