December weather forecast
Griffith Park, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Griffith Park, Maryland, with an average temperature fluctuating between 31.1°F (-0.5°C) and 43.5°F (6.4°C).

Temperature

December is marked by a subtle drop in average high-temperatures, transitioning from a cool 52.3°F (11.3°C) in November to a frosty 43.5°F (6.4°C). Griffith Park experiences a consistent average temperature of 31.1°F (-0.5°C) throughout the nights in December.

Humidity

In December, the average relative humidity in Griffith Park is 78%.

Rainfall

In Griffith Park, in December, it is raining for 10.4 days, with typically 2.24" (57mm) of accumulated precipitation. In Griffith Park, during the entire year, the rain falls for 158.7 days and collects up to 30.91" (785mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Griffith Park, in December, snow falls for 3.5 days, with typically accumulated 2.01" (51mm) of snow. Throughout the year, in Griffith Park, there are 21.3 snowfall days, and 13.31" (338mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of December, in Griffith Park, sunrise is at 7:27 am and sunset at 4:55 pm EST.

Sunshine

In Griffith Park, the average sunshine in December 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. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

How cold does it get in December?

The average high-temperature and low-temperature during December are 43.5°F (6.4°C) and 31.1°F (-0.5°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December in Griffith Park is 78%.

How many days does it rain in December?

In December, the rain falls for 10.4 days. Throughout December, 2.24" (57mm) of precipitation is accumulated.

How much does it snow in December?

In December, it is snowing for 3.5 days. Throughout December, 2.01" (51mm) of snow is accumulated.

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 Griffith Park have in December?

In December, the average day length in Griffith Park is 9h and 28min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:55 pm EST.

How many hours of sunshine does Griffith Park have in December?

In December, the average sunshine duration is 5.1h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe 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
Griffith Park, MD

Average temperature in December - Griffith Park, MD
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
Griffith Park, MD

Average pressure in December - Griffith Park, 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 (29.95"Hg).

Average wind speed in December
Griffith Park, MD

Average wind speed in December - Griffith Park, MD
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Griffith Park, MD

Average humidity in December - Griffith Park, MD
  • Average humidity in December: 78%

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in December
Griffith Park, MD

Average rainfall in December - Griffith Park, MD
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in December
Griffith Park, MD

Average rainfall days in December - Griffith Park, MD
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Griffith Park, MD

Average snowfall in December - Griffith Park, MD
  • Average snowfall in December: 2.01"

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Griffith Park, MD

Average snowfall days in December - Griffith Park, MD
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Griffith Park, MD

Average daylight in December / Average sunshine in December - Griffith Park, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Griffith Park, MD

Average sunshine days in December - Griffith Park, MD
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Griffith Park, MD

Average UV index in December - Griffith Park, 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).

Average cloud cover in December
Griffith Park, MD

Average cloud cover in December - Griffith Park, 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
Griffith Park, MD

Average visibility in December - Griffith Park, MD
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Griffith Park, Maryland, USA

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