December weather forecast
Port Republic, MD

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Weather in December

December, the first month of the winter in Port Republic, is still a chilly month, with an average temperature fluctuating between 36.5°F (2.5°C) and 46.6°F (8.1°C).

Temperature

Port Republic's transition into December involves a gentle shift in temperature, receding from a fresh 54.9°F (12.7°C) in November to a frosty 46.6°F (8.1°C). An average nighttime temperature of 36.5°F (2.5°C) is recorded during December.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Port Republic, Maryland, in December, during 10.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Port Republic, during the entire year, the rain falls for 158.1 days and collects up to 33.07" (840mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Port Republic, in December, during 1.7 snowfall days, 0.71" (18mm) of snow is typically accumulated. In Port Republic, during the entire year, snow falls for 10.6 days and aggregates up to 5.51" (140mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:55 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 2 in December leads to these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

What are the temperatures in December?

The high-temperature, in December, in Port Republic, records 46.6°F (8.1°C), while the low-temperature is 36.5°F (2.5°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 91.4°F (33°C).

What is the average humidity in December in Port Republic?

The average relative humidity in December is 76%.

How much does it rain in December?

In Port Republic, in December, during 10.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Port Republic, in December, during 1.7 snowfall days, 0.71" (18mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 9h and 32min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:55 pm EST.

How many hours of sunshine does Port Republic have in December?

The average sunshine duration in December is 5.1h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from 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
Port Republic, MD

Average temperature in December - Port Republic, MD
  • Average high temperature in December: 46.6°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in December
Port Republic, MD

Average pressure in December - Port Republic, MD
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Port Republic, MD

Average wind speed in December - Port Republic, MD
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity in December
Port Republic, MD

Average humidity in December - Port Republic, MD
  • Average humidity in December: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (72%).

Average rainfall in December
Port Republic, MD

Average rainfall in December - Port Republic, MD
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in December
Port Republic, MD

Average rainfall days in December - Port Republic, MD
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is November (8 days).

Average snowfall in December
Port Republic, MD

Average snowfall in December - Port Republic, MD
  • Average snowfall in December: 0.71"

The month with the highest snowfall is January (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Port Republic, MD

Average snowfall days in December - Port Republic, MD
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Port Republic, MD

Average daylight in December / Average sunshine in December - Port Republic, MD
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in December
Port Republic, MD

Average sunshine days in December - Port Republic, MD
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (11.3 days).

Average UV index in December
Port Republic, MD

Average UV index in December - Port Republic, 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 and December (UV index 2).

Average cloud cover in December
Port Republic, MD

Average cloud cover in December - Port Republic, MD
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in December
Port Republic, MD

Average visibility in December - Port Republic, MD
  • Average visibility in December: 6mi

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

Port Republic, Maryland, USA

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