December weather forecast
Cattertons Reach, MD

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Weather in December

December, the first month of the winter in Cattertons Reach, is still a chilly month, with an average temperature fluctuating between 46.4°F (8°C) and 36.5°F (2.5°C).

Temperature

Cattertons Reach's progression into December involves a minor drop in the average high-temperature, slightly receding from a cool 54.7°F (12.6°C) in November to a frosty 46.4°F (8°C). Cattertons Reach observes an average nighttime low-temperature of 36.5°F (2.5°C) during the month of December.

Humidity

In December, the average relative humidity is 75%.

Rainfall

In December, in Cattertons Reach, the rain falls for 8.4 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. In Cattertons Reach, during the entire year, the rain falls for 132.3 days and collects up to 15.83" (402mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Cattertons Reach, Maryland, in December, snow falls for 1.6 days, with typically accumulated 0.28" (7mm) of snow. In Cattertons Reach, during the entire year, snow falls for 9.4 days and aggregates up to 1.97" (50mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December in Cattertons Reach, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:55 pm EST.

Sunshine

In Cattertons Reach, Maryland, the average sunshine in December is 5.2h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 2 during December leads to these instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What are December temperatures in Cattertons Reach?

The average high-temperature, in December, in Cattertons Reach, is 46.4°F (8°C), while the average low-temperature is 36.5°F (2.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 89.6°F (32°C).

What is the average humidity in December in Cattertons Reach?

The average relative humidity in December in Cattertons Reach, Maryland, is 75%.

How many days does it rain in December in Cattertons Reach?

In Cattertons Reach, Maryland, during December, the rain falls for 8.4 days and regularly aggregates up to 0.91" (23mm) of precipitation.

How many days does it snow in December in Cattertons Reach?

In Cattertons Reach, Maryland, in December, during 1.6 snowfall days, 0.28" (7mm) of snow is typically accumulated.

What is the month with the shortest days in Cattertons Reach?

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

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

In December, the average day length is 9h and 31min.

What time are sunrise and sunset in December in Cattertons Reach?

On the first day of December, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:55 pm EST.

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

In December, the average sunshine duration in Cattertons Reach, Maryland, is 5.2h.

What are the months with the lowest UV index in Cattertons Reach?

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

What is the UV index reading in December in Cattertons Reach?

The average daily maximum UV index in December in Cattertons Reach, Maryland, is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Cattertons Reach, MD

Average temperature in December - Cattertons Reach, MD
  • Average high temperature in December: 46.4°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 (40.6°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in December
Cattertons Reach, MD

Average pressure in December - Cattertons Reach, 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 (29.94"Hg).

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Average wind speed in December
Cattertons Reach, MD

Average wind speed in December - Cattertons Reach, MD
  • Average wind speed in December: 9.2mph

The windiest months (with the highest average wind speed) are January and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in December
Cattertons Reach, MD

Average humidity in December - Cattertons Reach, MD
  • Average humidity in December: 75%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (72%).

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Average rainfall in December
Cattertons Reach, MD

Average rainfall in December - Cattertons Reach, MD
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in December
Cattertons Reach, MD

Average rainfall days in December - Cattertons Reach, MD
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (6.6 days).

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Average snowfall in December
Cattertons Reach, MD

Average snowfall in December - Cattertons Reach, MD
  • Average snowfall in December: 0.28"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Cattertons Reach, MD

Average snowfall days in December - Cattertons Reach, MD
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is January (2.9 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
Cattertons Reach, MD

Average daylight in December / Average sunshine in December - Cattertons Reach, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in December
Cattertons Reach, MD

Average sunshine days in December - Cattertons Reach, MD
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.7 days).

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Average UV index in December
Cattertons Reach, MD

Average UV index in December - Cattertons 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 and December (UV index 2).

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Average cloud cover in December
Cattertons Reach, MD

Average cloud cover in December - Cattertons Reach, 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 27).

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Average visibility in December
Cattertons Reach, MD

Average visibility in December - Cattertons 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).

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Cattertons Reach, Maryland, USA

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