December weather forecast
Brownsville, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Brownsville, Maryland, with an average temperature varying between 43.5°F (6.4°C) and 31.1°F (-0.5°C).

Temperature

As December commences, the average high-temperature shows a reduction, transitioning from a cool 52.5°F (11.4°C) in November to a chilly 43.5°F (6.4°C). Brownsville reports a consistent average low-temperature of 31.1°F (-0.5°C) throughout December nights.

Humidity

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

Rainfall

In Brownsville, Maryland, in December, during 10.9 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Brownsville, during the entire year, the rain falls for 163.3 days and collects up to 29.84" (758mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Brownsville, in December, snow falls for 3.6 days, with typically accumulated 2.05" (52mm) of snow. Throughout the year, there are 20.6 snowfall days, and 12.13" (308mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of December, in Brownsville, sunrise is at 7:30 am and sunset at 4:57 pm EST.

Sunshine

In December, the average sunshine in Brownsville is 5.1h.

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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is December?

The high-temperature during December is 43.5°F (6.4°C) and the low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is appraised at 91.4°F (33°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How many days does it rain in December?

In Brownsville, in December, during 10.9 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Brownsville, in December, snow falls for 3.6 days, with typically accumulated 2.05" (52mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December in Brownsville?

In December, the average day length is 9h and 27min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:57 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 5.1h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In Brownsville, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to 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
Brownsville, MD

Average temperature in December - Brownsville, MD
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Brownsville, MD

Average pressure in December - Brownsville, 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
Brownsville, MD

Average wind speed in December - Brownsville, MD
  • Average wind speed in December: 6.7mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in December
Brownsville, MD

Average humidity in December - Brownsville, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in December
Brownsville, MD

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

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in December
Brownsville, MD

Average rainfall days in December - Brownsville, MD
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in December
Brownsville, MD

Average snowfall in December - Brownsville, MD
  • Average snowfall in December: 2.05"

The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Brownsville, MD

Average snowfall days in December - Brownsville, MD
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (6.9 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
Brownsville, MD

Average daylight in December / Average sunshine in December - Brownsville, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).

Average sunshine days in December
Brownsville, MD

Average sunshine days in December - Brownsville, MD
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in December
Brownsville, MD

Average UV index in December - Brownsville, 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
Brownsville, MD

Average cloud cover in December - Brownsville, MD
  • Average cloud cover in December: 46

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Brownsville, MD

Average visibility in December - Brownsville, MD
  • Average visibility in December: 5mi

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

Brownsville, Maryland, USA

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