December weather forecast and climate
Cockeysville, MD

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

Temperature

In December, the average high-temperature drops, from a fresh 52.9°F (11.6°C) in November, to a chilly 43.9°F (6.6°C). 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, Maryland, it is raining for 7.1 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, in Cockeysville, 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 Cockeysville, during December, snow falls for 2 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, in Cockeysville, there are 12.1 snowfall days, and 1.81" (46mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Cockeysville, Maryland, with an average of 9.4h of daylight.

Sunshine

The average sunshine in Cockeysville, Maryland, 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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Cockeysville?

In Cockeysville, in December, the average high-temperature is 43.9°F (6.6°C), and the average low-temperature is 33.1°F (0.6°C).

What is the average humidity in December in Cockeysville?

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

How much does it rain in Cockeysville in December?

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

How many days does it snow in December in Cockeysville?

In Cockeysville, 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?

The month with the shortest days is December, with an average of 9.4h of daylight.

How many hours of daylight does Cockeysville have in December?

In Cockeysville, the average length of the day in December is 9.4h.

How many hours of sunshine does Cockeysville have in December?

The average sunshine in December is 5.1h.

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

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

What is the UV index intensity in December in Cockeysville?

The average daily maximum UV index in December in Cockeysville is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.
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).

Average pressure in December - Cockeysville, MD
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is November (30.14").
The month with the lowest atmospheric pressure is June (29.94").

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).

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%).

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").

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).

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

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

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).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Cockeysville, MD
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.1h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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).

Average UV index in December - Cockeysville, MD
  • Average UV index in December: 2

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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).

Average visibility in December - Cockeysville, MD
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).