December weather forecast
Trevanion, MD

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Weather in December

December, the first month of the winter in Trevanion, is also an icy month, with temperature in the range of an average high of 42.6°F (5.9°C) and an average low of 30.4°F (-0.9°C).

Temperature

As December begins, there is a minor decrease in the average high-temperature, softly falling from a cool 51.3°F (10.7°C) in November to an icy 42.6°F (5.9°C). In Trevanion, the average nighttime temperature during December is a subzero cold 30.4°F (-0.9°C).

Humidity

The average relative humidity in December is 79%.

Rainfall

In Trevanion, in December, it is raining for 9.8 days, with typically 1.77" (45mm) of accumulated precipitation. In Trevanion, during the entire year, the rain falls for 157.5 days and collects up to 27.52" (699mm) of precipitation.

Snowfall

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

Daylight

The month with the shortest days in Trevanion, Maryland, is December, with an average of 9h and 24min of daylight.
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 is 5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Trevanion, Maryland. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. 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. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

Is it cold in Trevanion during December?

The high-temperature during December is 42.6°F (5.9°C) and the low-temperature is 30.4°F (-0.9°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 87.8°F (31°C).

What is the average humidity in December in Trevanion?

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

How many days does it rain in December in Trevanion?

In Trevanion, in December, it is raining for 9.8 days, with typically 1.77" (45mm) of accumulated precipitation.

How many days does it snow in December in Trevanion?

In Trevanion, Maryland, 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 in Trevanion?

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 Trevanion?

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

When is the sunrise / sunset in December in Trevanion?

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.

How long on average sun shines in December in Trevanion?

In Trevanion, the average sunshine duration in December is 5h.

When is the lowest UV index in Trevanion?

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?

In Trevanion, Maryland, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Trevanion, Maryland, USA

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