December weather forecast
Sligo, MD

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Weather in December

December, the first month of the winter in Sligo, is also a frosty month, with an average temperature fluctuating between 45.3°F (7.4°C) and 33.3°F (0.7°C).

Temperature

During the shift to December, Sligo records a mild decrease in average high-temperature, moving from a cool 53.6°F (12°C) in November to a chilly 45.3°F (7.4°C). An average nighttime temperature of 33.3°F (0.7°C) is observed during December.

Humidity

May, October and December, with an average relative humidity of 75%, are the most humid months.

Rainfall

In Sligo, in December, during 10.4 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 154.8 rainfall days, and 30.28" (769mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Sligo. In December, it is snowing for 2.5 days. Throughout December, 1.34" (34mm) of snow is accumulated. Throughout the year, there are 15 snowfall days, and 9.17" (233mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:56 pm EST.

Sunshine

In December, the average sunshine is 5h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

What are the temperatures in December?

December temperatures vary between a high-temperature of 45.3°F (7.4°C) and a low-temperature of 33.3°F (0.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is computed to be 95°F (35°C).

What is the most humid month?

May, October and December, with an average relative humidity of 75%, are most humid months.

What is the average humidity in December?

In Sligo, the average relative humidity in December is 75%.

How much does it rain in December?

In Sligo, Maryland, in December, it is raining for 10.4 days, with typically 2.44" (62mm) of accumulated precipitation.

How much does it snow in Sligo in December?

In Sligo, during December, snow falls for 2.5 days and regularly aggregates up to 1.34" (34mm) 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.

How many hours of daylight does Sligo have in December?

In Sligo, the average day length in December is 9h and 29min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:56 pm EST.

How long on average sun shines in December?

In Sligo, the average sunshine duration in December is 5h.

What is the month with the lowest UV index?

The months with the lowest UV index in Sligo are January, 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 reading of 2, and below, represents a minimal hazard to health 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
Sligo, MD

Average temperature in December - Sligo, MD
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 33.3°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in December
Sligo, MD

Average pressure in December - Sligo, 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
Sligo, MD

Average wind speed in December - Sligo, MD
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Sligo, MD

Average humidity in December - Sligo, MD
  • Average humidity in December: 75%

The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).

Average rainfall in December
Sligo, MD

Average rainfall in December - Sligo, MD
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in December
Sligo, MD

Average rainfall days in December - Sligo, MD
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in December
Sligo, MD

Average snowfall in December - Sligo, MD
  • Average snowfall in December: 1.34"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Sligo, MD

Average snowfall days in December - Sligo, MD
  • Average snowfall days in December: 2.5 days

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

Average daylight in December / Average sunshine in December - Sligo, 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 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 54min).

Average sunshine days in December
Sligo, MD

Average sunshine days in December - Sligo, MD
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).

Average UV index in December
Sligo, MD

Average UV index in December - Sligo, 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
Sligo, MD

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

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Sligo, MD

Average visibility in December - Sligo, MD
  • Average visibility in December: 6mi

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

Sligo, Maryland, USA

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