December weather forecast
Chesterfield Plaza, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Chesterfield Plaza, Maryland, with an average temperature fluctuating between 34.7°F (1.5°C) and 45.5°F (7.5°C).

Temperature

Chesterfield Plaza experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a cool 53.8°F (12.1°C) in November to a frosty 45.5°F (7.5°C). Throughout the month of December, Chesterfield Plaza witnesses an average low-temperature of 34.7°F (1.5°C).

Humidity

In December, the average relative humidity is 75%.

Rainfall

In December, the rain falls for 11.4 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. Throughout the year, there are 155.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Chesterfield Plaza, in December, during 2.4 snowfall days, 0.63" (16mm) of snow is typically accumulated. Throughout the year, there are 14 snowfall days, and 6.14" (156mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Chesterfield Plaza.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:53 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

What is the average December temperature in Chesterfield Plaza?

Chesterfield Plaza in December has an average high-temperature of 45.5°F (7.5°C) and an average low-temperature of 34.7°F (1.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 91.4°F (33°C).

What is the average humidity in December?

In Chesterfield Plaza, Maryland, the average relative humidity in December is 75%.

How many days does it rain in December in Chesterfield Plaza?

In Chesterfield Plaza, in December, it is raining for 11.4 days, with typically 2.83" (72mm) of accumulated precipitation.

How many days does it snow in December?

In Chesterfield Plaza, during December, snow falls for 2.4 days and regularly aggregates up to 0.63" (16mm) of snow.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length in Chesterfield Plaza, Maryland, is 9h and 28min.

What time are sunrise and sunset in December in Chesterfield Plaza?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:53 pm EST.

How many hours of sunshine does Chesterfield Plaza have in December?

In Chesterfield Plaza, the average sunshine duration in December is 5.2h.

When is the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe 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
Chesterfield Plaza, MD

Average temperature in December - Chesterfield Plaza, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in December: 34.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in December
Chesterfield Plaza, MD

Average pressure in December - Chesterfield Plaza, 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
Chesterfield Plaza, MD

Average wind speed in December - Chesterfield Plaza, MD
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in December
Chesterfield Plaza, MD

Average humidity in December - Chesterfield Plaza, MD
  • Average humidity in December: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in December
Chesterfield Plaza, MD

Average rainfall in December - Chesterfield Plaza, MD
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Chesterfield Plaza, MD

Average rainfall days in December - Chesterfield Plaza, MD
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in December
Chesterfield Plaza, MD

Average snowfall in December - Chesterfield Plaza, MD
  • Average snowfall in December: 0.63"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Chesterfield Plaza, MD

Average snowfall days in December - Chesterfield Plaza, MD
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (4.4 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
Chesterfield Plaza, MD

Average daylight in December / Average sunshine in December - Chesterfield Plaza, MD
  • 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 1min

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
Chesterfield Plaza, MD

Average sunshine days in December - Chesterfield Plaza, MD
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Chesterfield Plaza, MD

Average UV index in December - Chesterfield Plaza, 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, November and December (UV index 2).

Average cloud cover in December
Chesterfield Plaza, MD

Average cloud cover in December - Chesterfield Plaza, MD
  • Average cloud cover in December: 44

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Chesterfield Plaza, MD

Average visibility in December - Chesterfield Plaza, 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).

Chesterfield Plaza, Maryland, USA

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