December weather forecast
Tilghmanton Heights, MD

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Weather in December

The first month of the winter, December, is still a cold month in Tilghmanton Heights, Maryland, with temperature in the range of an average high of 42.3°F (5.7°C) and an average low of 29.7°F (-1.3°C).

Temperature

December's arrival subtly correlates with a reduction in the average high-temperature, down from a cool 51.1°F (10.6°C) in November to an icy 42.3°F (5.7°C). During the nights in December, Tilghmanton Heights observes an average low-temperature of 29.7°F (-1.3°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In December, the rain falls for 9.6 days. Throughout December, 1.93" (49mm) of precipitation is accumulated. In Tilghmanton Heights, during the entire year, the rain falls for 152.2 days and collects up to 26.02" (661mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In December, in Tilghmanton Heights, it is snowing for 3.8 days. Throughout December, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 20.8 snowfall days, and 12.56" (319mm) 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 December, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:57 pm EST.

Sunshine

In December, the average sunshine 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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, in Tilghmanton Heights, the average high-temperature is 42.3°F (5.7°C), and the average low-temperature is 29.7°F (-1.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How much does it rain in December?

In December, the rain falls for 9.6 days. Throughout December, 1.93" (49mm) of precipitation is accumulated.

How many days does it snow in December?

In Tilghmanton Heights, in December, during 3.8 snowfall days, 2.01" (51mm) of snow is typically 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.

How many hours of daylight does Tilghmanton Heights have in December?

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

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:57 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In Tilghmanton Heights, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Tilghmanton Heights, MD

Average temperature in December - Tilghmanton Heights, MD
  • Average high temperature in December: 42.3°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 (36.9°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in December
Tilghmanton Heights, MD

Average pressure in December - Tilghmanton Heights, 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
Tilghmanton Heights, MD

Average wind speed in December - Tilghmanton Heights, MD
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Tilghmanton Heights, MD

Average humidity in December - Tilghmanton Heights, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is July (74%).

Average rainfall in December
Tilghmanton Heights, MD

Average rainfall in December - Tilghmanton Heights, MD
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Tilghmanton Heights, MD

Average rainfall days in December - Tilghmanton Heights, MD
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in December
Tilghmanton Heights, MD

Average snowfall in December - Tilghmanton Heights, MD
  • Average snowfall in December: 2.01"

The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Tilghmanton Heights, MD

Average snowfall days in December - Tilghmanton Heights, MD
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Tilghmanton Heights, MD

Average daylight in December / Average sunshine in December - Tilghmanton Heights, 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 months with the least sunshine are January and February (Average sunshine: 4h and 48min).

Average sunshine days in December
Tilghmanton Heights, MD

Average sunshine days in December - Tilghmanton Heights, MD
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in December
Tilghmanton Heights, MD

Average UV index in December - Tilghmanton Heights, 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
Tilghmanton Heights, MD

Average cloud cover in December - Tilghmanton Heights, MD
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Tilghmanton Heights, MD

Average visibility in December - Tilghmanton Heights, MD
  • Average visibility in December: 6mi

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

Tilghmanton Heights, Maryland, USA

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