December weather forecastLexington Park, MD

December

Weather in December

December marks the onset of winter, reinstating a familiar chill and relative stillness in the air. The landscape transforms into a wonderland with the arrival of the first snowfall, though it amounts to a modest 0.55in. With the cloud cover percentage climbing up to 43, several overcast days are expected. The decrease in daylight hours adds to the cozy winter atmosphere. The weather in December mirrors the peace and stillness of the year-end, heralding festive celebrations under the clear, starlit skies of Lexington Park.

Temperature

Lexington Park's weather subtly changes with the onset of December, barely falling from a fresh 55.2°F (12.9°C) in November to a frosty 47.3°F (8.5°C). Lexington Park records an average low of 38.1°F (3.4°C) throughout the nights in December.

Humidity

The average relative humidity in December in Lexington Park is 76%.

Rainfall

In Lexington Park, in December, it is raining for 7.9 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 121.6 rainfall days, and 11.18" (284mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 1.5 days and accumulates 0.55" (14mm) of snow.

Daylight

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

Sunshine

In Lexington Park, the average sunshine in December is 5.3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 2 in December leads to these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.

Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Lexington Park in December has an average high-temperature of 47.3°F (8.5°C) and an average low-temperature of 38.1°F (3.4°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 89.6°F (32°C).

The average relative humidity in December is 76%.

In Lexington Park, during December, the rain falls for 7.9 days and regularly aggregates up to 0.87" (22mm) of precipitation.

The month with the most snowfall is December, when snow falls for 1.5 days and typically aggregates up to 0.55" (14mm) of snow.

In December, it is snowing for 1.5 days. Throughout December, 0.55" (14mm) of snow is accumulated.

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

In December, the average day length is 9h and 34min.

In December, on the first day of the month, 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.

The average sunshine duration in December is 5.3h.

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

In Lexington Park, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

55.2°F

47.3°F

41.5°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.6mph

10.4mph

11.1mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

21.2

20.5

20.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Lexington Park, MD

Average high temperature in December: 47.3°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (41.5°F).

Average low temperature in December: 38.1°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in December
Lexington Park, 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).

Average wind speed in December
Lexington Park, MD

Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in December
Lexington Park, 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 and November (73%).

Average rainfall in December
Lexington Park, MD

Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in December
Lexington Park, MD

Average rainfall days in December: 7.9 days

The month with the highest number of rainy days is July (14.1 days).
The months with the least rainy days are January and February (7.1 days).

Average snowfall in December
Lexington Park, MD

Average snowfall in December: 0.55"

The month with the highest snowfall is December (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Lexington Park, MD

Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is January (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Lexington Park, MD

Average daylight in December: 9h and 36min

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 18min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in December
Lexington Park, MD

Average sunshine days in December: 20.5 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (13.8 days).

Average UV index in December
Lexington Park, 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).

Average cloud cover in December
Lexington Park, 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 27).

Average visibility in December
Lexington Park, 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).