December weather forecast
Trevanion, MD

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Weather in December

The first month of the winter, December, is also a wintry month in Trevanion, Maryland, with an average temperature ranging between max 42.6°F (5.9°C) and min 30.4°F (-0.9°C).

Temperature

December witnesses a gentle descent in average high-temperature, descending from November's cool 51.3°F (10.7°C) to a wintry 42.6°F (5.9°C). The average temperature drops to a freezing cold 30.4°F (-0.9°C) during the night in the month of December.

Humidity

In December, the average relative humidity in Trevanion is 79%.

Rainfall

In Trevanion, during December, the rain falls for 9.8 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, there are 157.5 rainfall days, and 27.52" (699mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Trevanion, Maryland. In Trevanion, Maryland, in December, during 3.9 snowfall days, 1.57" (40mm) of snow is typically accumulated. Throughout the year, there are 22.3 snowfall days, and 9.76" (248mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:10 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:54 pm EST.

Sunshine

The average sunshine in December in Trevanion is 5h.

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 low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The high-temperature, in December, in Trevanion, records 42.6°F (5.9°C), while the low-temperature is 30.4°F (-0.9°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 79%.

How much does it rain in Trevanion in December?

In Trevanion, during December, the rain falls for 9.8 days and regularly aggregates up to 1.77" (45mm) of precipitation.

How many days does it snow in December?

In Trevanion, during December, snow falls for 3.9 days and regularly aggregates up to 1.57" (40mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 25min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:54 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 5h.

When is the lowest UV index?

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

How high is the UV index in December?

In Trevanion, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat 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
Trevanion, MD

Average temperature in December - Trevanion, MD
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in December
Trevanion, MD

Average pressure in December - Trevanion, 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
Trevanion, MD

Average wind speed in December - Trevanion, MD
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in December
Trevanion, MD

Average humidity in December - Trevanion, MD
  • Average humidity in December: 79%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Trevanion, MD

Average rainfall in December - Trevanion, MD
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is February (1.61").

Average rainfall days in December
Trevanion, MD

Average rainfall days in December - Trevanion, MD
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in December
Trevanion, MD

Average snowfall in December - Trevanion, MD
  • Average snowfall in December: 1.57"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Trevanion, MD

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

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Trevanion, 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 0min

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
Trevanion, MD

Average sunshine days in December - Trevanion, MD
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Trevanion, MD

Average UV index in December - Trevanion, 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
Trevanion, MD

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

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

Average visibility in December
Trevanion, MD

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

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

Trevanion, Maryland, USA

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