December weather forecast
Marengo, VA

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Weather in December

The first month of the winter, December, is also a fresh month in Marengo, Virginia, with an average temperature ranging between max 50.2°F (10.1°C) and min 36.3°F (2.4°C).

Temperature

As December arrives, Marengo's weather displays a minor decrease in high-temperatures, transitioning from November's refreshing 57.6°F (14.2°C) to a cool 50.2°F (10.1°C). Marengo experiences an average low-temperature of 36.3°F (2.4°C) in month of December.

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In Marengo, in December, it is raining for 11.2 days, with typically 2.76" (70mm) of accumulated precipitation. In Marengo, Virginia, during the entire year, the rain falls for 159.5 days and collects up to 30.39" (772mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Marengo, during December, snow falls for 1 days and regularly aggregates up to 1.14" (29mm) of snow. In Marengo, during the entire year, snow falls for 8.8 days and aggregates up to 7.13" (181mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:06 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5.4h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

What are the temperatures in December?

In December, in Marengo, the average high-temperature is 50.2°F (10.1°C), and the average low-temperature is 36.3°F (2.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is computed to be 86°F (30°C).

What is the most humid month in Marengo?

The most humid month is December, with an average relative humidity of 79%.

What is the average humidity in December?

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

How much does it rain in December?

In Marengo, during December, the rain falls for 11.2 days and regularly aggregates up to 2.76" (70mm) of precipitation.

How much does it snow in December?

In Marengo, during December, snow falls for 1 days and regularly aggregates up to 1.14" (29mm) of snow.

What is the month with the shortest days?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

How many hours of daylight does Marengo have in December?

The average day length in December is 9h and 43min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:06 pm EST.

What is the month with the least sunshine?

With an average of 5.4h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Marengo have in December?

In December, the average sunshine duration is 5.4h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

In Marengo, the average daily maximum UV index in December is 2. A UV Index reading 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
Marengo, VA

Average temperature in December - Marengo, VA
  • Average high temperature in December: 50.2°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (45.9°F).

  • Average low temperature in December: 36.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in December
Marengo, VA

Average pressure in December - Marengo, VA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Marengo, VA

Average wind speed in December - Marengo, VA
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Marengo, VA

Average humidity in December - Marengo, VA
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (72%).

Average rainfall in December
Marengo, VA

Average rainfall in December - Marengo, VA
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in December
Marengo, VA

Average rainfall days in December - Marengo, VA
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in December
Marengo, VA

Average snowfall in December - Marengo, VA
  • Average snowfall in December: 1.14"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Marengo, VA

Average snowfall days in December - Marengo, VA
  • Average snowfall days in December: 1 days

The month with the highest number of snowfall days is January (3.2 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
Marengo, VA

Average daylight in December / Average sunshine in December - Marengo, VA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Marengo, VA

Average sunshine days in December - Marengo, VA
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Marengo, VA

Average UV index in December - Marengo, VA
  • 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 and December (UV index 2).

Average cloud cover in December
Marengo, VA

Average cloud cover in December - Marengo, VA
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in December
Marengo, VA

Average visibility in December - Marengo, VA
  • 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).

Marengo, Virginia, USA

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