December weather forecast
Cockeysville, MD

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Weather in December

Entering the final month of the year, December sees Cockeysville wrapped in winter's embrace. The temperature remains cool, touching lows of 33.1°F (0.6°C). The city comes full circle weather-wise, with December's 0.24" (6mm) of snowfall matching that of January. The month experiences one of the shortest daylight durations of the year, with just 9.4 daylight hours. As winter settles, the wind, too, gains momentum, howling through the city at an average speed of 8.3mph (13.4km/h). Despite the chilly weather, the spirit of holiday celebrations warms the hearts of Cockeysville's residents.

Temperature

As December commences, the average high-temperature shows a reduction, transitioning from a cool 52.9°F (11.6°C) in November to a chilly 43.9°F (6.6°C). Cockeysville throughout December, experiences an average nighttime temperature of 33.1°F (0.6°C).

Humidity

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

Rainfall

In Cockeysville, in December, during 7.1 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Cockeysville, during the entire year, the rain falls for 101.9 days and collects up to 9.17" (233mm) of precipitation.

Snowfall

Months with snowfall in Cockeysville are January through April, November and December. In Cockeysville, during December, snow falls for 2 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, in Cockeysville, Maryland, there are 12.1 snowfall days, and 1.81" (46mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:43 pm. On the last day of December, in Cockeysville, sunrise is at 7:26 am and sunset at 4:53 pm EST.

Sunshine

In December, the average sunshine is 5.1h.

UV index

The months with the lowest UV index in Cockeysville, Maryland, are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 2 during December translates into the following guidance:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

Is it cold in Cockeysville during December?

The average high-temperature and low-temperature in Cockeysville, Maryland, during December are 43.9°F (6.6°C) and 33.1°F (0.6°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 89.6°F (32°C).

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 Cockeysville, Maryland, during December, the rain falls for 7.1 days and regularly aggregates up to 0.75" (19mm) of precipitation.

How much does it snow in Cockeysville in December?

In December, in Cockeysville, it is snowing for 2 days. Throughout December, 0.24" (6mm) of snow is accumulated.

What is the month with the shortest days in Cockeysville?

The month with the shortest days in Cockeysville, Maryland, is December, with an average of 9h and 24min of daylight.

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

In December, the average day length is 9h and 26min.

When are sunrise and sunset in December in Cockeysville?

On the first day of December in Cockeysville, sunrise is at 7:08 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 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?

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

What is the UV index intensity in December in Cockeysville?

In Cockeysville, 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 unprotected exposure to 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
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 2min

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 24min).

  • Average sunshine in December: 5h and 1min

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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Cockeysville, Maryland, USA

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