December weather forecast
Mayfield, MD

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Weather in December

December, the first month of the winter in Mayfield, is still a chilly month, with an average temperature fluctuating between 45.5°F (7.5°C) and 34.5°F (1.4°C).

Temperature

December's arrival signals a moderate reduction in the average high-temperature, easing from a fresh 53.6°F (12°C) in November to a chilly 45.5°F (7.5°C). Mayfield encounters an average low-temperature of 34.5°F (1.4°C) during December nights.

Humidity

The average relative humidity in December is 76%.

Rainfall

In Mayfield, during December, the rain falls for 10.4 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, there are 157.2 rainfall days, and 30.47" (774mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Mayfield, in December, during 2.1 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Mayfield, during the entire year, snow falls for 11.9 days and aggregates up to 5.75" (146mm) 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 7:07 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:53 pm EST.

Sunshine

In Mayfield, the average sunshine in December is 5.2h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

What are December temperatures?

December temperatures vary between a high-temperature of 45.5°F (7.5°C) and a low-temperature of 34.5°F (1.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is appraised at 91.4°F (33°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How much does it rain in December?

In Mayfield, Maryland, in December, during 10.4 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Mayfield, during December, snow falls for 2.1 days and regularly aggregates up to 0.39" (10mm) 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 Mayfield have in December?

In Mayfield, the average day length in December is 9h and 27min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:53 pm EST.

How long on average sun shines in December?

The average sunshine duration in December in Mayfield is 5.2h.

When is the lowest UV index?

The months with the lowest UV index 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 in Mayfield is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Mayfield, MD

Average temperature in December - Mayfield, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 34.5°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in December
Mayfield, MD

Average pressure in December - Mayfield, 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
Mayfield, MD

Average wind speed in December - Mayfield, MD
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in December
Mayfield, MD

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

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are March, April and July (72%).

Average rainfall in December
Mayfield, MD

Average rainfall in December - Mayfield, MD
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in December
Mayfield, MD

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

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

Average snowfall in December
Mayfield, MD

Average snowfall in December - Mayfield, MD
  • Average snowfall in December: 0.39"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Mayfield, MD

Average snowfall days in December - Mayfield, MD
  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

Average sunshine days in December
Mayfield, MD

Average sunshine days in December - Mayfield, MD
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19.9 days).
The months with the least sunshine days are May and July (10.8 days).

Average UV index in December
Mayfield, MD

Average UV index in December - Mayfield, 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
Mayfield, MD

Average cloud cover in December - Mayfield, MD
  • Average cloud cover in December: 44

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

Average visibility in December
Mayfield, MD

Average visibility in December - Mayfield, 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).

Mayfield, Maryland, USA

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