December weather forecast
Belfast, OH

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Weather in December

The first month of the winter, December, is also an icy month in Belfast, Ohio, with an average temperature varying between 40.8°F (4.9°C) and 30°F (-1.1°C).

Temperature

The arrival of December corresponds with a temperature reduction, down from November's fresh 50.9°F (10.5°C) to a wintry 40.8°F (4.9°C). During December, the nighttime temperature in Belfast, Ohio, averages of 30°F (-1.1°C).

Humidity

The months with the highest humidity in Belfast are January, February and December, with an average relative humidity of 82%.

Rainfall

In Belfast, in December, it is raining for 12.1 days, with typically 3.03" (77mm) of accumulated precipitation. In Belfast, Ohio, during the entire year, the rain falls for 174 days and collects up to 34.72" (882mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Belfast. In Belfast, Ohio, in December, during 9.3 snowfall days, 2.99" (76mm) of snow is typically accumulated. Throughout the year, in Belfast, Ohio, there are 40.1 snowfall days, and 15.04" (382mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:34 am and sunset at 5:12 pm. On the last day of December, sunrise is at 7:53 am and sunset at 5:21 pm EST.

Sunshine

In December, the average sunshine is 4.1h.

UV index

December is the month with the lowest UV index in Belfast, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

How cold is it in Belfast in December?

The average high-temperature and low-temperature during December are 40.8°F (4.9°C) and 30°F (-1.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is computed to be 87.8°F (31°C).

What are the most humid months in Belfast?

January, February and December, with an average relative humidity of 82%, are most humid months.

What is the average humidity in December in Belfast?

In Belfast, Ohio, the average relative humidity in December is 82%.

How much does it rain in Belfast in December?

In Belfast, Ohio, during December, the rain falls for 12.1 days and regularly aggregates up to 3.03" (77mm) of precipitation.

How many days does it snow in December in Belfast?

In Belfast, in December, during 9.3 snowfall days, 2.99" (76mm) of snow is typically accumulated.

What is the month with the shortest days in Belfast?

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

What is the average length of the day in December in Belfast?

In Belfast, the average day length in December is 9h and 29min.

When is the sunrise / sunset in December in Belfast?

On the first day of December in Belfast, sunrise is at 7:34 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:21 pm EST.

How many hours of sunshine does Belfast have in December?

In December, the average sunshine duration in Belfast, Ohio, is 4.1h.

What is the month with the lowest UV index in Belfast?

December is the month with the lowest UV index in Belfast, with an average maximum UV index of 1.

How high is the UV index in December in Belfast?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Belfast, OH

Average temperature in December - Belfast, OH
  • Average high temperature in December: 40.8°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in December
Belfast, OH

Average pressure in December - Belfast, OH
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and 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
Belfast, OH

Average wind speed in December - Belfast, OH
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in December
Belfast, OH

Average humidity in December - Belfast, OH
  • Average humidity in December: 82%

The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in December
Belfast, OH

Average rainfall in December - Belfast, OH
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in December
Belfast, OH

Average rainfall days in December - Belfast, OH
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (10.3 days).

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Average snowfall in December
Belfast, OH

Average snowfall in December - Belfast, OH
  • Average snowfall in December: 2.99"

The month with the highest snowfall is February (4.06").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Belfast, OH

Average snowfall days in December - Belfast, OH
  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is January (11.3 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
Belfast, OH

Average daylight in December / Average sunshine in December - Belfast, OH
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Belfast, OH

Average sunshine days in December - Belfast, OH
  • Average sunshine days in December: 12.2 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (8.9 days).

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Average UV index in December
Belfast, OH

Average UV index in December - Belfast, OH
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Belfast, OH

Average cloud cover in December - Belfast, OH
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Belfast, OH

Average visibility in December - Belfast, OH
  • Average visibility in December: 6mi

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

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Belfast, Ohio, USA

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