December weather forecast
Cockeysville, MD

Weather in December

The first month of the winter, December, is still a chilly month in Cockeysville, Maryland, with an average temperature fluctuating between 33.1°F (0.6°C) and 43.9°F (6.6°C).

Temperature

In December, the average high-temperature drops from a cool 52.9°F (11.6°C) in November to a frosty 43.9°F (6.6°C). In December, in Cockeysville, the average low-temperature is 33.1°F (0.6°C).

Humidity

In Cockeysville, the average relative humidity in December is 77%.

Rainfall

In Cockeysville, it is raining for 7.1 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 101.9 rainfall days, and 9.17" (233mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Cockeysville. In December, it is snowing for 2 days. Throughout December, 0.24" (6mm) of snow is accumulated. Throughout the year, there are 12.1 snowfall days, and 1.81" (46mm) of snow is accumulated.

Daylight

The month with the shortest days in Cockeysville is December, with an average of 9h and 26min 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 4:52 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index in Cockeysville are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Cockeysville?

In Cockeysville, Maryland, the average relative humidity in December is 77%.

How many days does it rain in December in Cockeysville?

In December, the rain falls for 7.1 days. Throughout December, 0.75" (19mm) of precipitation is accumulated.

How many days does it snow in December in Cockeysville?

In Cockeysville, Maryland, during December, snow falls for 2 days and regularly aggregates up to 0.24" (6mm) of snow.

What is the month with the shortest days in Cockeysville?

With an average of 9h and 26min of daylight, December has the shortest days of the year in Cockeysville.

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

The average day length in December in Cockeysville is 9h and 26min.

When are sunrise and sunset in December in Cockeysville?

On the first day of December, 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 4:52 pm EST.

How many hours of sunshine does Cockeysville have in December?

In December, the average sunshine duration in Cockeysville, Maryland, is 5.1h.

What is the month with the lowest UV index in Cockeysville?

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

What is the UV index intensity in December in Cockeysville?

In December, the average daily maximum UV index in Cockeysville, Maryland, is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Cockeysville, MD

Average temperature in December - Cockeysville, MD
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in December
Cockeysville, MD

Average pressure in December - Cockeysville, 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).

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Average wind speed in December
Cockeysville, MD

Average wind speed in December - Cockeysville, MD
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in December
Cockeysville, MD

Average humidity in December - Cockeysville, MD
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Cockeysville, MD

Average rainfall in December - Cockeysville, MD
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in December
Cockeysville, MD

Average rainfall days in December - Cockeysville, MD
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is January (5.2 days).

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Average snowfall in December
Cockeysville, MD

Average snowfall in December - Cockeysville, MD
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Cockeysville, MD

Average snowfall days in December - Cockeysville, MD
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is February (3.8 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
Cockeysville, MD

Average daylight in December / Average sunshine in December - Cockeysville, MD
  • Average daylight in December: 9h and 26min

The month with the longest days is June (Average daylight: 14h and 55min).
The month with the shortest days is December (Average daylight: 9h and 26min).

  • Average sunshine in December: 5h and 6min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in December
Cockeysville, MD

Average sunshine days in December - Cockeysville, MD
  • Average sunshine days in December: 21.8 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (15.2 days).

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Average UV index in December
Cockeysville, MD

Average UV index in December - Cockeysville, 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, February, November and December (UV index 2).

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Average cloud cover in December
Cockeysville, MD

Average cloud cover in December - Cockeysville, MD
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in December
Cockeysville, MD

Average visibility in December - Cockeysville, 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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