December weather forecast
Bloomington, MD

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Weather in December

The first month of the winter, December, is still a cold month in Bloomington, Maryland, with an average temperature fluctuating between 40.1°F (4.5°C) and 27.5°F (-2.5°C).

Temperature

December indicates a minor shift in the average high-temperature, from November's frosty 48.9°F (9.4°C) to a wintry 40.1°F (4.5°C). Bloomington throughout December, experiences an average nighttime temperature of 27.5°F (-2.5°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In Bloomington, in December, during 13.8 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, in Bloomington, there are 184.1 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Bloomington, in December, snow falls for 9.1 days, with typically accumulated 3.31" (84mm) of snow. In Bloomington, during the entire year, snow falls for 45.5 days and aggregates up to 20.67" (525mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Bloomington, Maryland.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:02 pm EST.

Sunshine

The average sunshine in December in Bloomington is 4.7h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December leads to these advisories:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

Is it cold in Bloomington during December?

The average high-temperature and low-temperature during December are 40.1°F (4.5°C) and 27.5°F (-2.5°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in July is estimated at 87.8°F (31°C).

What is the average humidity in December in Bloomington?

The average relative humidity in December is 81%.

How much does it rain in Bloomington in December?

In Bloomington, during December, the rain falls for 13.8 days and regularly aggregates up to 2.91" (74mm) of precipitation.

How much does it snow in Bloomington in December?

In Bloomington, in December, snow falls for 9.1 days, with typically accumulated 3.31" (84mm) of snow.

What is the month with the shortest days in Bloomington?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Bloomington have in December?

In Bloomington, Maryland, the average day length in December is 9h and 26min.

What time are sunrise and sunset in December in Bloomington?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:53 pm. On the last day of the month, in Bloomington, Maryland, sunrise is at 7:36 am and sunset at 5:02 pm EST.

How long on average sun shines in December in Bloomington?

In December, the average sunshine duration in Bloomington, Maryland, is 4.7h.

When is the lowest UV index in Bloomington?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bloomington, Maryland.

What is the UV index intensity in December in Bloomington?

In Bloomington, Maryland, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat 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
Bloomington, MD

Average temperature in December - Bloomington, MD
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in December
Bloomington, MD

Average pressure in December - Bloomington, 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).

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Average wind speed in December
Bloomington, MD

Average wind speed in December - Bloomington, MD
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in December
Bloomington, MD

Average humidity in December - Bloomington, MD
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, June and July (76%).

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Average rainfall in December
Bloomington, MD

Average rainfall in December - Bloomington, MD
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is November (1.89").

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Average rainfall days in December
Bloomington, MD

Average rainfall days in December - Bloomington, MD
  • Average rainfall days in December: 13.8 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is November (11.8 days).

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Average snowfall in December
Bloomington, MD

Average snowfall in December - Bloomington, MD
  • Average snowfall in December: 3.31"

The month with the highest snowfall is February (4.84").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Bloomington, MD

Average snowfall days in December - Bloomington, MD
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is January (12.8 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
Bloomington, MD

Average daylight in December / Average sunshine in December - Bloomington, 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: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in December
Bloomington, MD

Average sunshine days in December - Bloomington, MD
  • Average sunshine days in December: 11 days

The month with the most sunshine days is November (15 days).
The month with the least sunshine days is May (8.5 days).

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Average UV index in December
Bloomington, MD

Average UV index in December - Bloomington, MD
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Bloomington, MD

Average cloud cover in December - Bloomington, MD
  • Average cloud cover in December: 52

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 35).

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Average visibility in December
Bloomington, MD

Average visibility in December - Bloomington, MD
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).

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Bloomington, Maryland, USA

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