December weather forecast
Worthington, MD

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Weather in December

December, the first month of the winter in Worthington, is also a frosty month, with an average temperature ranging between max 43.3°F (6.3°C) and min 31.3°F (-0.4°C).

Temperature

December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's cool 51.8°F (11°C) to a chilly 43.3°F (6.3°C). The average nighttime temperature lowers to a subzero cold 31.3°F (-0.4°C) throughout December.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Worthington, during December, the rain falls for 10.2 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Worthington, during the entire year, the rain falls for 159.1 days and collects up to 31.54" (801mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Worthington, in December, snow falls for 3.9 days, with typically accumulated 1.69" (43mm) of snow. In Worthington, during the entire year, snow falls for 21.2 days and aggregates up to 10.55" (268mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:08 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:53 pm EST.

Sunshine

In Worthington, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 2 during December translates into the following guidance:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Frequently asked questions

How cold is it in December?

In December, in Worthington, the average high-temperature is 43.3°F (6.3°C), and the average low-temperature is 31.3°F (-0.4°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How many days does it rain in December?

In Worthington, in December, during 10.2 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 3.9 days. Throughout December, 1.69" (43mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:08 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:53 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.9h.

What are the months with the lowest UV index in Worthington?

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

What is the UV index reading in December?

In Worthington, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's 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
Worthington, MD

Average temperature in December - Worthington, MD
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
Worthington, MD

Average pressure in December - Worthington, 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).

Average wind speed in December
Worthington, MD

Average wind speed in December - Worthington, MD
  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in December
Worthington, MD

Average humidity in December - Worthington, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).

Average rainfall in December
Worthington, MD

Average rainfall in December - Worthington, MD
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").

Average rainfall days in December
Worthington, MD

Average rainfall days in December - Worthington, MD
  • Average rainfall days in December: 10.2 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
Worthington, MD

Average snowfall in December - Worthington, MD
  • Average snowfall in December: 1.69"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Worthington, MD

Average snowfall days in December - Worthington, MD
  • Average snowfall days in December: 3.9 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Worthington, MD

Average daylight in December / Average sunshine in December - Worthington, 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Worthington, MD

Average sunshine days in December - Worthington, MD
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in December
Worthington, MD

Average UV index in December - Worthington, 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
Worthington, MD

Average cloud cover in December - Worthington, MD
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Worthington, MD

Average visibility in December - Worthington, 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).

Worthington, Maryland, USA

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