December weather forecast
Simpsons Farm, MD

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Weather in December

December, the first month of the winter in Simpsons Farm, is also a frosty month, with an average temperature varying between 46.4°F (8°C) and 36.5°F (2.5°C).

Temperature

December is characterized by a slight reduction in average high-temperature, easing from a cool 54.7°F (12.6°C) in November to a frosty 46.4°F (8°C). During the nights in December, Simpsons Farm observes an average low-temperature of 36.5°F (2.5°C).

Humidity

The average relative humidity in December in Simpsons Farm is 75%.

Rainfall

In Simpsons Farm, in December, it is raining for 8.4 days, with typically 0.91" (23mm) of accumulated precipitation. In Simpsons Farm, 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 Simpsons Farm, Maryland. In Simpsons Farm, Maryland, in December, during 1.6 snowfall days, 0.28" (7mm) of snow is typically accumulated. In Simpsons Farm, 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 in Simpsons Farm, Maryland.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:55 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

The months with the lowest UV index in Simpsons Farm are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

What are the temperatures in Simpsons Farm in December?

In December, in Simpsons Farm, the average high-temperature is 46.4°F (8°C), and the average low-temperature is 36.5°F (2.5°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 89.6°F (32°C).

What is the average humidity in December in Simpsons Farm?

The average relative humidity in December is 75%.

How many days does it rain in December in Simpsons Farm?

In Simpsons Farm, in December, it is raining for 8.4 days, with typically 0.91" (23mm) of accumulated precipitation.

How much does it snow in Simpsons Farm in December?

In Simpsons Farm, Maryland, in December, snow falls for 1.6 days, with typically accumulated 0.28" (7mm) of snow.

What is the month with the shortest days in Simpsons Farm?

December has the shortest days of the year in Simpsons Farm, with an average of 9h and 30min of daylight.

What is the average length of the day in December in Simpsons Farm?

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

When is the sunrise / sunset in December in Simpsons Farm?

On the first day of December in Simpsons Farm, Maryland, 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 Simpsons Farm have in December?

The average sunshine duration in December in Simpsons Farm is 5.2h.

What are the months with the lowest UV index in Simpsons Farm?

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

What is the UV index intensity in December in Simpsons Farm?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Simpsons Farm, MD

Average temperature in December - Simpsons Farm, 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
Simpsons Farm, MD

Average pressure in December - Simpsons Farm, 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
Simpsons Farm, MD

Average wind speed in December - Simpsons Farm, 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
Simpsons Farm, MD

Average humidity in December - Simpsons Farm, 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
Simpsons Farm, MD

Average rainfall in December - Simpsons Farm, 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
Simpsons Farm, MD

Average rainfall days in December - Simpsons Farm, 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
Simpsons Farm, MD

Average snowfall in December - Simpsons Farm, 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
Simpsons Farm, MD

Average snowfall days in December - Simpsons Farm, 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
Simpsons Farm, MD

Average daylight in December / Average sunshine in December - Simpsons Farm, 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
Simpsons Farm, MD

Average sunshine days in December - Simpsons Farm, 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
Simpsons Farm, MD

Average UV index in December - Simpsons Farm, 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
Simpsons Farm, MD

Average cloud cover in December - Simpsons Farm, 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
Simpsons Farm, MD

Average visibility in December - Simpsons Farm, 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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Simpsons Farm, Maryland, USA

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