December weather forecast
Solomons, MD

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Weather in December

Finally, December concludes the weather cycle in Solomons, Maryland. The sharp dip in temperature and the return of snowfall from November’s 0.24" (6mm) to December’s 0.94" (24mm) prove December as the authentic start of winter. With January just around the corner, Solomons residents can anticipate consistent snowfall and colder temperatures. The re-emergence of colder weather in December marks the full circle of weather transitioning and transforms the landscape into a winter wonderland.

Temperature

December brings a minor shift in the average high-temperature, adjusting from a cool 55.2°F (12.9°C) in November to a frosty 47.1°F (8.4°C). December is noted for a mean low-temperature of 37.8°F (3.2°C).

Humidity

In December, the average relative humidity in Solomons is 76%.

Rainfall

In Solomons, in December, during 10.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 160.6 rainfall days, and 34.49" (876mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Solomons, in December, snow falls for 1.7 days, with typically accumulated 0.94" (24mm) of snow. Throughout the year, there are 9.6 snowfall days, and 5.28" (134mm) of snow is accumulated.

Ocean temperature

In Solomons, in December, the average water temperature is 52.5°F (11.4°C).
Note: Diving into 52.5°F (11.4°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

December has the shortest days of the year in Solomons, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:04 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:55 pm EST.

Sunshine

In Solomons, the average sunshine in December is 5.2h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Solomons. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a regular UV index of 2 translates into these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What are December temperatures in Solomons?

In Solomons, in December, the average high-temperature is 47.1°F (8.4°C), and the average low-temperature is 37.8°F (3.2°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 89.6°F (32°C).

What is the average humidity in December in Solomons?

The average relative humidity in December in Solomons, Maryland, is 76%.

How much does it rain in Solomons in December?

In Solomons, Maryland, during December, the rain falls for 10.5 days and regularly aggregates up to 2.24" (57mm) of precipitation.

How many days does it snow in December in Solomons?

In Solomons, Maryland, in December, snow falls for 1.7 days, with typically accumulated 0.94" (24mm) of snow.

What is the water temperature in December in Solomons?

In Solomons, Maryland, the average seawater temperature in December is 52.5°F (11.4°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Solomons?

December has the shortest days of the year in Solomons, with an average of 9h and 36min of daylight.

How many hours of daylight does Solomons have in December?

In Solomons, Maryland, the average day length in December is 9h and 33min.

When are sunrise and sunset in December in Solomons?

On the first day of December in Solomons, Maryland, sunrise is at 7:04 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:55 pm EST.

How long on average sun shines in December in Solomons?

The average sunshine duration in December in Solomons is 5.2h.

What is the month with the lowest UV index in Solomons?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Solomons.

What is the UV index intensity in December in Solomons?

The average daily maximum UV index in December in Solomons is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
55.2°F 12.9°C
47.1°F 8.4°C
41.7°F 5.4°C
Average low temperature
43.9°F 6.6°C
37.8°F 3.2°C
31.5°F -0.3°C
Average pressure
30.13" 765mmHg
30.11" 765mmHg
30.11" 765mmHg
Average wind speed
9.2mph 14.8km/h
9mph 14.5km/h
9.7mph 15.6km/h
Average max. wind speed
9.9mph 15.9km/h
9.7mph 15.6km/h
10.4mph 16.7km/h
Average wind speed gusts
15.1mph 24.3km/h
14.8mph 23.8km/h
15.7mph 25.3km/h
Average humidity
73%
76%
73%
Average rainfall
2.09" 53mm
2.24" 57mm
1.93" 49mm
Average rainfall days
9
10.5
8.8
Average snowfall
0.24" 6mm
0.94" 24mm
1.77" 45mm
Average snowfall days
0.1
1.7
3.5
Average sea temperature
58.9°F 14.9°C
52.6°F 11.4°C
47.2°F 8.4°C
Average daylight
10h 1min
9h 4min
9h 5min
Average sunshine
5h 5min
5h 1min
5h 3min
Average sunshine days
18.9
18.5
18.8
Average UV index
3
2
2
Average cloud cover
35%
43%
41%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in December
Solomons, MD

Average temperature in December - Solomons, MD
  • Average high temperature in December: 47.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in December
Solomons, MD

Average pressure in December - Solomons, MD
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Solomons, MD

Average wind speed in December - Solomons, MD
  • Average wind speed in December: 9mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in December
Solomons, MD

Average humidity in December - Solomons, MD
  • Average humidity in December: 76%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March and November (73%).

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Average rainfall in December
Solomons, MD

Average rainfall in December - Solomons, MD
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in December
Solomons, MD

Average rainfall days in December - Solomons, MD
  • Average rainfall days in December: 10.5 days

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

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Average snowfall in December
Solomons, MD

Average snowfall in December - Solomons, MD
  • Average snowfall in December: 0.94"

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Solomons, MD

Average snowfall days in December - Solomons, MD
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in December
Solomons, MD

Average sea temperature in December - Solomons, MD
  • Average sea temperature in December: 52.6°F

The best month for swimming (with the highest average sea temperature) is August (78.5°F).
The coldest month (with the lowest average sea temperature) is February (45.6°F).

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

Average daylight in December / Average sunshine in December - Solomons, MD
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in December
Solomons, MD

Average sunshine days in December - Solomons, MD
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is August (10.7 days).

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Average UV index in December
Solomons, MD

Average UV index in December - Solomons, 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 and December (UV index 2).

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Average cloud cover in December
Solomons, MD

Average cloud cover in December - Solomons, MD
  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in December
Solomons, MD

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

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

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Solomons, Maryland, USA

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