December weather forecast
Brown Heights, MD

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Weather in December

December, the first month of the winter in Brown Heights, is also an icy month, with an average temperature ranging between max 42.6°F (5.9°C) and min 30.4°F (-0.9°C).

Temperature

The transition into December subtly indicates a reduction in the average high-temperature, down to an icy 42.6°F (5.9°C) from November's cool 51.3°F (10.7°C). In December, Brown Heights records an average nighttime temperature of 30.4°F (-0.9°C).

Humidity

The average relative humidity in December is 79%.

Rainfall

In December, the rain falls for 9.8 days. Throughout December, 1.77" (45mm) of precipitation is accumulated. In Brown Heights, during the entire year, the rain falls for 157.5 days and collects up to 27.52" (699mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 3.9 days. Throughout December, 1.57" (40mm) of snow is accumulated. In Brown Heights, during the entire year, snow falls for 22.3 days and aggregates up to 9.76" (248mm) of snow.

Daylight

The month with the shortest days in Brown Heights is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:54 pm EST.

Sunshine

In December, the average sunshine is 5h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature, in December, in Brown Heights, records 42.6°F (5.9°C), while the low-temperature is 30.4°F (-0.9°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 87.8°F (31°C).

What is the average humidity in December?

In Brown Heights, the average relative humidity in December is 79%.

How much does it rain in December?

In December, the rain falls for 9.8 days. Throughout December, 1.77" (45mm) of precipitation is accumulated.

How many days does it snow in December in Brown Heights?

In Brown Heights, during December, snow falls for 3.9 days and regularly aggregates up to 1.57" (40mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Brown Heights have in December?

In Brown Heights, the average day length in December is 9h and 25min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:54 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 5h.

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.

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Brown Heights, MD

Average temperature in December - Brown Heights, MD
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in December
Brown Heights, MD

Average pressure in December - Brown Heights, 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
Brown Heights, MD

Average wind speed in December - Brown Heights, MD
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in December
Brown Heights, MD

Average humidity in December - Brown Heights, MD
  • Average humidity in December: 79%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Brown Heights, MD

Average rainfall in December - Brown Heights, MD
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is February (1.61").

Average rainfall days in December
Brown Heights, MD

Average rainfall days in December - Brown Heights, MD
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in December
Brown Heights, MD

Average snowfall in December - Brown Heights, MD
  • Average snowfall in December: 1.57"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Brown Heights, MD

Average snowfall days in December - Brown Heights, MD
  • Average snowfall days in December: 3.9 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Brown Heights, MD

Average daylight in December / Average sunshine in December - Brown Heights, 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
Brown Heights, MD

Average sunshine days in December - Brown Heights, MD
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Brown Heights, MD

Average UV index in December - Brown Heights, 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
Brown Heights, MD

Average cloud cover in December - Brown Heights, MD
  • Average cloud cover in December: 47

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

Average visibility in December
Brown Heights, MD

Average visibility in December - Brown Heights, 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).

Brown Heights, Maryland, USA

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