December weather forecast
Good Acres, MD

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Weather in December

The first month of the winter, December, is still a cold month in Good Acres, Maryland, with an average temperature fluctuating between 29.3°F (-1.5°C) and 41.5°F (5.3°C).

Temperature

December brings a minor decrease, with the average high-temperature reducing from a fresh 50.7°F (10.4°C) in November to a cold 41.5°F (5.3°C). During December, Good Acres records an average temperature of 29.3°F (-1.5°C) at night.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In December, the rain falls for 11.2 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 164.7 rainfall days, and 29.17" (741mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Good Acres, in December, snow falls for 5.2 days, with typically accumulated 2.17" (55mm) of snow. Throughout the year, there are 28.6 snowfall days, and 14.65" (372mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Good Acres, Maryland.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:56 pm EST.

Sunshine

In Good Acres, the average sunshine in December is 4.9h.

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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

How cold is December?

The high-temperature, in December, in Good Acres, is 41.5°F (5.3°C), while the low-temperature averages to 29.3°F (-1.5°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity in Good Acres is 78%.

How much does it rain in December?

In Good Acres, in December, during 11.2 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 5.2 days. Throughout December, 2.17" (55mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 25min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:13 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:56 pm EST.

How many hours of sunshine does Good Acres have in December?

In December, the average sunshine duration in Good Acres is 4.9h.

When is 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 reading in December?

In Good Acres, 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 the Sun's 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
Good Acres, MD

Average temperature in December - Good Acres, MD
  • Average high temperature in December: 41.5°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average pressure in December
Good Acres, MD

Average pressure in December - Good Acres, 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
Good Acres, MD

Average wind speed in December - Good Acres, MD
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in December
Good Acres, MD

Average humidity in December - Good Acres, MD
  • Average humidity in December: 78%

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in December
Good Acres, MD

Average rainfall in December - Good Acres, MD
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days in December
Good Acres, MD

Average rainfall days in December - Good Acres, MD
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in December
Good Acres, MD

Average snowfall in December - Good Acres, MD
  • Average snowfall in December: 2.17"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Good Acres, MD

Average snowfall days in December - Good Acres, MD
  • Average snowfall days in December: 5.2 days

The month with the highest number of snowfall days is January (9 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
Good Acres, MD

Average daylight in December / Average sunshine in December - Good Acres, 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 5min

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
Good Acres, MD

Average sunshine days in December - Good Acres, MD
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in December
Good Acres, MD

Average UV index in December - Good Acres, MD
  • Average UV index in December: 2

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

Average cloud cover in December
Good Acres, MD

Average cloud cover in December - Good Acres, MD
  • Average cloud cover in December: 49

The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Good Acres, MD

Average visibility in December - Good Acres, MD
  • Average visibility in December: 6mi

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

Good Acres, Maryland, USA

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