December weather forecast
Southwood, MD

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Weather in December

December, the first month of the winter in Southwood, is also a frosty month, with an average temperature varying between 43.3°F (6.3°C) and 31.3°F (-0.4°C).

Temperature

The commencement of December indicates a gentle shift in the average high-temperature, receding from November's cool 51.8°F (11°C) to a chilly 43.3°F (6.3°C). During the nights in December, Southwood observes an average low-temperature of 31.3°F (-0.4°C).

Humidity

The average relative humidity in December in Southwood is 78%.

Rainfall

In Southwood, during December, the rain falls for 10.3 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 158.9 rainfall days, and 31.38" (797mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Southwood, in December, snow falls for 3.9 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, there are 21.2 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 24min of daylight.
On the first day of December, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:53 pm EST.

Sunshine

In December, the average sunshine is 5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

How cold does it get in December?

The average high-temperature and low-temperature during December are 43.3°F (6.3°C) and 31.3°F (-0.4°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 78%.

How many days does it rain in December?

In December, the rain falls for 10.3 days. Throughout December, 2.44" (62mm) of precipitation is accumulated.

How much does it snow in December?

In December, it is snowing for 3.9 days. Throughout December, 1.69" (43mm) of snow is accumulated.

What is the month with the shortest days in Southwood?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Southwood have in December?

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

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:53 pm EST.

How many hours of sunshine does Southwood have in December?

In December, the average sunshine duration is 5h.

What are the months with 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?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
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
Southwood, MD

Average temperature in December - Southwood, MD
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
Southwood, MD

Average pressure in December - Southwood, 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
Southwood, MD

Average wind speed in December - Southwood, MD
  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in December
Southwood, MD

Average humidity in December - Southwood, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).

Average rainfall in December
Southwood, MD

Average rainfall in December - Southwood, MD
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").

Average rainfall days in December
Southwood, MD

Average rainfall days in December - Southwood, MD
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Southwood, MD

Average snowfall in December - Southwood, MD
  • Average snowfall in December: 1.69"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Southwood, MD

Average snowfall days in December - Southwood, MD
  • Average snowfall days in December: 3.9 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Southwood, MD

Average daylight in December / Average sunshine in December - Southwood, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Southwood, MD

Average sunshine days in December - Southwood, MD
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in December
Southwood, MD

Average UV index in December - Southwood, 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
Southwood, MD

Average cloud cover in December - Southwood, MD
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Southwood, MD

Average visibility in December - Southwood, MD
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Southwood, Maryland, USA

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