December weather forecast
Martin's Additions, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Martin's Additions, Maryland, with an average temperature ranging between max 45.3°F (7.4°C) and min 33.1°F (0.6°C).

Temperature

The arrival of December is marked by a minor reduction in average high-temperature, sliding from a cool 53.8°F (12.1°C) in November to a frosty 45.3°F (7.4°C). In December, Martin's Additions reports a consistent average low-temperature of 33.1°F (0.6°C) during the nights.

Humidity

December is the most humid month in Martin's Additions, with an average relative humidity of 76%.

Rainfall

In December, the rain falls for 9.9 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. In Martin's Additions, Maryland, during the entire year, the rain falls for 150.3 days and collects up to 28.66" (728mm) of precipitation.

Snowfall

Months with snowfall in Martin's Additions are January through April, November and December. In Martin's Additions, during December, snow falls for 2 days and regularly aggregates up to 0.94" (24mm) of snow. Throughout the year, in Martin's Additions, there are 13.7 snowfall days, and 8.39" (213mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December in Martin's Additions, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:56 pm EST.

Sunshine

January, February and December, with an average of 5h of sunshine, are months with the least sunshine.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Martin's Additions. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 2 during December leads to these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What is the usual temperature for Martin's Additions in December?

The average high-temperature and low-temperature during December are 45.3°F (7.4°C) and 33.1°F (0.6°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 95°F (35°C).

What is the most humid month in Martin's Additions?

With an average relative humidity of 76%, December is the most humid month.

What is the average humidity in December in Martin's Additions?

The average relative humidity in December in Martin's Additions, Maryland, is 76%.

How much does it rain in Martin's Additions in December?

In Martin's Additions, Maryland, during December, the rain falls for 9.9 days and regularly aggregates up to 2.17" (55mm) of precipitation.

How many days does it snow in December in Martin's Additions?

In December, in Martin's Additions, it is snowing for 2 days. Throughout December, 0.94" (24mm) of snow is accumulated.

What is the month with the shortest days in Martin's Additions?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Martin's Additions, Maryland.

How many hours of daylight does Martin's Additions have in December?

In December, the average day length in Martin's Additions is 9h and 29min.

When are sunrise and sunset in December in Martin's Additions?

On the first day of December, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:56 pm EST.

What is the month with the least sunshine in Martin's Additions?

The months with the least sunshine in Martin's Additions, Maryland, are January, February and December, with an average of 5h of sunshine.

How many hours of sunshine does Martin's Additions have in December?

In December, the average sunshine duration in Martin's Additions is 5h.

What are the months with the lowest UV index in Martin's Additions?

The months with the lowest UV index in Martin's Additions are January, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Martin's Additions?

The average daily maximum UV index in December in Martin's Additions, Maryland, 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
Martin's Additions, MD

Average temperature in December - Martin
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in December
Martin's Additions, MD

Average pressure in December - Martin
  • 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
Martin's Additions, MD

Average wind speed in December - Martin
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in December
Martin's Additions, MD

Average humidity in December - Martin
  • Average humidity in December: 76%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in December
Martin's Additions, MD

Average rainfall in December - Martin
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").

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Average rainfall days in December
Martin's Additions, MD

Average rainfall days in December - Martin
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in December
Martin's Additions, MD

Average snowfall in December - Martin
  • Average snowfall in December: 0.94"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Martin's Additions, MD

Average snowfall days in December - Martin
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Martin's Additions, MD

Average daylight in December / Average sunshine in December - Martin
  • 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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).

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Average sunshine days in December
Martin's Additions, MD

Average sunshine days in December - Martin
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).

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Average UV index in December
Martin's Additions, MD

Average UV index in December - Martin
  • 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).

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Average cloud cover in December
Martin's Additions, MD

Average cloud cover in December - Martin
  • 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
Martin's Additions, MD

Average visibility in December - Martin
  • 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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Martin's Additions, Maryland, USA

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