December weather forecast
Bel Air, MD

Weather in December

December, the first month of the winter in Bel Air, is also a frosty month, with an average temperature fluctuating between 43.9°F (6.6°C) and 32.2°F (0.1°C).

Temperature

In Bel Air, Maryland, the average high-temperature in December decreases from a fresh 52.9°F (11.6°C) in November to a frosty 43.9°F (6.6°C). In Bel Air, the average low-temperature is 32.2°F (0.1°C).

Humidity

In December, the average relative humidity in Bel Air is 78%.

Rainfall

In Bel Air, Maryland, in December, it is raining for 10.5 days, with typically 3.15" (80mm) of accumulated precipitation. Throughout the year, in Bel Air, there are 170.1 rainfall days, and 36.42" (925mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Bel Air. In Bel Air, in December, during 3.8 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, there are 21.9 snowfall days, and 10.55" (268mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 26min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:51 pm EST.

Sunshine

In Bel Air, Maryland, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index in Bel Air 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 average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Bel Air?

The average high-temperature, in December, in Bel Air, is 43.9°F (6.6°C), while the average low-temperature is 32.2°F (0.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December in Bel Air?

In Bel Air, the average relative humidity in December is 78%.

How much does it rain in Bel Air in December?

In Bel Air, Maryland, in December, during 10.5 rainfall days, 3.15" (80mm) of precipitation is typically accumulated.

How many days does it snow in December in Bel Air?

In Bel Air, during December, snow falls for 3.8 days and regularly aggregates up to 1.42" (36mm) of snow.

What is the month with the shortest days in Bel Air?

The month with the shortest days in Bel Air, Maryland, is December, with an average of 9h and 26min of daylight.

What is the average length of the day in December in Bel Air?

The average day length in December is 9h and 26min.

When is the sunrise / sunset in December in Bel Air?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:42 pm. On the last day of the month, in Bel Air, Maryland, sunrise is at 7:25 am and sunset at 4:51 pm EST.

How many hours of sunshine does Bel Air have in December?

The average sunshine duration in December in Bel Air is 5.1h.

What are the months with the lowest UV index in Bel Air?

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

What is the UV index reading in December in Bel Air?

In Bel Air, Maryland, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Bel Air, MD

Average temperature in December - Bel Air, MD
  • Average high temperature in December: 43.9°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: 32.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure in December
Bel Air, MD

Average pressure in December - Bel Air, MD
  • Average pressure in December: 30.1"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
Bel Air, MD

Average wind speed in December - Bel Air, MD
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Bel Air, MD

Average humidity in December - Bel Air, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in December
Bel Air, MD

Average rainfall in December - Bel Air, MD
  • Average rainfall in December: 3.15"

The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is January (2.36").

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Average rainfall days in December
Bel Air, MD

Average rainfall days in December - Bel Air, MD
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in December
Bel Air, MD

Average snowfall in December - Bel Air, MD
  • Average snowfall in December: 1.42"

The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Bel Air, MD

Average snowfall days in December - Bel Air, MD
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Bel Air, MD

Average daylight in December / Average sunshine in December - Bel Air, MD
  • Average daylight in December: 9h and 26min

The month with the longest days is June (Average daylight: 14h and 55min).
The month with the shortest days is December (Average daylight: 9h and 26min).

  • Average sunshine in December: 5h and 6min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in December
Bel Air, MD

Average sunshine days in December - Bel Air, MD
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.8 days).

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Average UV index in December
Bel Air, MD

Average UV index in December - Bel Air, 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
Bel Air, MD

Average cloud cover in December - Bel Air, MD
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in December
Bel Air, MD

Average visibility in December - Bel Air, 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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