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. The city comes full circle weather-wise, with December's 0.24" 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. Despite the chilly weather, the spirit of holiday celebrations warms the hearts of Cockeysville's residents.

Temperature

Onset of December in Cockeysville witnesses a reduction in the average high-temperature, falling from a fresh 52.9°F in November to a frosty 43.9°F. Cockeysville throughout December, experiences an average nighttime temperature of 33.1°F.

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Cockeysville, during December, the rain falls for 7.1 days and regularly aggregates up to 0.75" of precipitation. Throughout the year, there are 101.9 rainfall days, and 9.17" of precipitation is accumulated.

Snowfall

Months with snowfall in Cockeysville, Maryland, are January through April, November and December. In December, it is snowing for 2 days. Throughout December, 0.24" of snow is accumulated. In Cockeysville, during the entire year, snow falls for 12.1 days and aggregates up to 1.81" of snow.

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 7:07 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

In December, the average sunshine is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Cockeysville. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

How cold is December in Cockeysville?

The high-temperature in Cockeysville during December is 43.9°F and the low-temperature is 33.1°F. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 89.6°F.

What is the average humidity in December in Cockeysville?

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

How many days does it rain in December in Cockeysville?

In Cockeysville, in December, it is raining for 7.1 days, with typically 0.75" of accumulated precipitation.

How much does it snow in Cockeysville in December?

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

What is the month with the shortest days in Cockeysville?

December has the shortest days of the year in Cockeysville, with an average of 9h and 24min of daylight.

How many hours of daylight does Cockeysville have in December?

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

What time are sunrise and sunset in December in Cockeysville?

On the first day of December in Cockeysville, 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 Cockeysville, Maryland, the average sunshine duration in December is 5.1h.

When is 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, Maryland.

How high is the UV index in December in Cockeysville?

The average daily maximum UV index in December in Cockeysville, Maryland, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
52.9°F
43.9°F
37.9°F
Average low temperature
38.8°F
33.1°F
25.9°F
Average pressure
30.14"Hg
30.11"Hg
30.1"Hg
Average wind speed
8mph
8.3mph
8.9mph
Average max. wind speed
8.6mph
8.9mph
9.7mph
Average wind speed gusts
13.2mph
13.5mph
14.5mph
Average humidity
74%
77%
74%
Average rainfall
0.59"
0.75"
0.47"
Average rainfall days
5.6
7.1
5.2
Average snowfall
0.12"
0.24"
0.55"
Average snowfall days
0.4
2
3.1
Average daylight
10h 0min
9h 2min
9h 5min
Average sunshine
5h 5min
5h 1min
5h 1min
Average sunshine days
22.9
21.8
22.6
Average UV index
2
2
2
Average cloud cover
37%
45%
44%
Average visibility
6mi
6mi
6mi

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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