December weather forecast
Long Reach, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Long Reach, Maryland, with an average temperature ranging between min 32.9°F (0.5°C) and max 44.2°F (6.8°C).

Temperature

The onset of December is marked by a minor decrease in temperature, transitioning from a cool 53.1°F (11.7°C) in November to a frosty 44.2°F (6.8°C). Long Reach reports an average nighttime low-temperature of 32.9°F (0.5°C) in December.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Long Reach, in December, it is raining for 10.2 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 159.3 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Long Reach, during December, snow falls for 2.9 days and regularly aggregates up to 1.14" (29mm) of snow. In Long Reach, during the entire year, snow falls for 15.9 days and aggregates up to 8.7" (221mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:54 pm EST.

Sunshine

The average sunshine in December in Long Reach is 5.2h.

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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

How cold is December?

Long Reach in December has an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 32.9°F (0.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is evaluated at 91.4°F (33°C).

What is the average humidity in December?

The average relative humidity in December is 76%.

How much does it rain in December?

In Long Reach, in December, it is raining for 10.2 days, with typically 2.24" (57mm) of accumulated precipitation.

How much does it snow in December?

In Long Reach, in December, during 2.9 snowfall days, 1.14" (29mm) of snow is typically accumulated.

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.

How many hours of daylight does Long Reach have in December?

The average day length in December is 9h and 28min.

When are sunrise and sunset in December in Long Reach?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:54 pm EST.

How many hours of sunshine does Long Reach have in December?

In December, the average sunshine duration is 5.2h.

When is 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 reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Long Reach, MD

Average temperature in December - Long Reach, MD
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in December
Long Reach, MD

Average pressure in December - Long Reach, 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
Long Reach, MD

Average wind speed in December - Long Reach, MD
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Long Reach, MD

Average humidity in December - Long Reach, MD
  • Average humidity in December: 76%

The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in December
Long Reach, MD

Average rainfall in December - Long Reach, MD
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in December
Long Reach, MD

Average rainfall days in December - Long Reach, MD
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in December
Long Reach, MD

Average snowfall in December - Long Reach, MD
  • Average snowfall in December: 1.14"

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

Average snowfall days in December
Long Reach, MD

Average snowfall days in December - Long Reach, MD
  • Average snowfall days in December: 2.9 days

The month with the highest number of snowfall days is February (4.6 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
Long Reach, MD

Average daylight in December / Average sunshine in December - Long Reach, 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 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

Average sunshine days in December
Long Reach, MD

Average sunshine days in December - Long Reach, MD
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Long Reach, MD

Average UV index in December - Long Reach, 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
Long Reach, MD

Average cloud cover in December - Long Reach, MD
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in December
Long Reach, MD

Average visibility in December - Long Reach, 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).

Long Reach, Maryland, USA

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