December weather forecast
Lusby, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Lusby, Maryland, with an average temperature varying between 47.1°F (8.4°C) and 37.8°F (3.2°C).

Temperature

December's arrival subtly correlates with a reduction in the average high-temperature, down from a fresh 55.2°F (12.9°C) in November to a chilly 47.1°F (8.4°C). Lusby, during the month of December, experiences an average low-temperature of 37.8°F (3.2°C).

Humidity

In Lusby, Maryland, the average relative humidity in December is 76%.

Rainfall

In Lusby, in December, it is raining for 10.5 days, with typically 2.24" (57mm) of accumulated precipitation. In Lusby, during the entire year, the rain falls for 160.6 days and collects up to 34.49" (876mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Lusby, Maryland, in December, during 1.7 snowfall days, 0.94" (24mm) of snow is typically accumulated. In Lusby, during the entire year, snow falls for 9.6 days and aggregates up to 5.28" (134mm) 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 7:04 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:55 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Lusby. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What are December temperatures in Lusby?

In Lusby, in December, the average high-temperature is 47.1°F (8.4°C), and the average low-temperature is 37.8°F (3.2°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in December in Lusby?

The average relative humidity in December in Lusby is 76%.

How many days does it rain in December in Lusby?

In December, in Lusby, the rain falls for 10.5 days. Throughout December, 2.24" (57mm) of precipitation is accumulated.

How much does it snow in Lusby in December?

In December, in Lusby, it is snowing for 1.7 days. Throughout December, 0.94" (24mm) of snow is accumulated.

What is the month with the shortest days in Lusby?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

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

In Lusby, Maryland, the average day length in December is 9h and 33min.

What time are sunrise and sunset in December in Lusby?

On the first day of December, sunrise is at 7:04 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:55 pm EST.

How long on average sun shines in December in Lusby?

In December, the average sunshine duration is 5.2h.

What are the months with the lowest UV index in Lusby?

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

How high is the UV index in December in Lusby?

In Lusby, Maryland, 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
Lusby, MD

Average temperature in December - Lusby, MD
  • Average high temperature in December: 47.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in December
Lusby, MD

Average pressure in December - Lusby, MD
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Lusby, MD

Average wind speed in December - Lusby, MD
  • Average wind speed in December: 9mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in December
Lusby, MD

Average humidity in December - Lusby, MD
  • Average humidity in December: 76%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March and November (73%).

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Average rainfall in December
Lusby, MD

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

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in December
Lusby, MD

Average rainfall days in December - Lusby, MD
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in December
Lusby, MD

Average snowfall in December - Lusby, MD
  • Average snowfall in December: 0.94"

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Lusby, MD

Average snowfall days in December - Lusby, MD
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Lusby, MD

Average daylight in December / Average sunshine in December - Lusby, MD
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
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 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in December
Lusby, MD

Average sunshine days in December - Lusby, MD
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is August (10.7 days).

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Average UV index in December
Lusby, MD

Average UV index in December - Lusby, 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 and December (UV index 2).

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Average cloud cover in December
Lusby, MD

Average cloud cover in December - Lusby, MD
  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in December
Lusby, MD

Average visibility in December - Lusby, 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).

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Lusby, Maryland, USA

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