December weather forecast
Port Clinton, OH

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Weather in December

The year wraps up in Port Clinton with full-fledged winter in December. Long, cold nights define the month, and even the sunniest days deliver only a mild respite from the chilly air. Comparatively, it is less snowy than January, recording 2.2" (56mm) of snowfall. The sea temperature drops to a chilly 37.2°F (2.9°C), making sea swimming an activity for only the bravest. High wind speeds of 11.9mph (19.2km/h) further enhance the winter’s coldness, concluding the weather cycle of Port Clinton in a freezing wrap.

Temperature

December in Port Clinton is characterized by a reduction in the average high-temperature, from a chilly 46.9°F (8.3°C) in November to an icy 36.9°F (2.7°C). December notes an average low temperature of 29.5°F (-1.4°C) in Port Clinton, subtly down from the daytime highs.

Humidity

In Port Clinton, the average relative humidity in December is 81%.

Rainfall

In Port Clinton, in December, during 10 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Port Clinton, during the entire year, the rain falls for 163.4 days and collects up to 34.92" (887mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In December, in Port Clinton, Ohio, it is snowing for 10.3 days. Throughout December, 2.2" (56mm) of snow is accumulated. Throughout the year, there are 48.2 snowfall days, and 11.89" (302mm) of snow is accumulated.

Ocean temperature

In December, the average ocean temperature in Port Clinton is 37.2°F (2.9°C).
Note: In the course of swimming, this situation is life-threatening and fraught with risk. The severe cold of the water leads to immediate hyperventilation. Wearing a specialized swimsuit is critical to limit thermal injury.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:39 am and sunset at 5:02 pm. On the last day of December, in Port Clinton, sunrise is at 7:58 am and sunset at 5:12 pm EST.

Sunshine

The average sunshine in December is 3.5h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

How cold is December in Port Clinton?

The high-temperature, in December, in Port Clinton, records 36.9°F (2.7°C), while the low-temperature is 29.5°F (-1.4°C).

What is the average humidity in December in Port Clinton?

In Port Clinton, Ohio, the average relative humidity in December is 81%.

How much does it rain in Port Clinton in December?

In Port Clinton, Ohio, in December, it is raining for 10 days, with typically 1.65" (42mm) of accumulated precipitation.

How many days does it snow in December in Port Clinton?

In Port Clinton, Ohio, in December, snow falls for 10.3 days, with typically accumulated 2.2" (56mm) of snow.

How cold is the water in December in Port Clinton?

In Port Clinton, Ohio, the average seawater temperature in December is 37.2°F (2.9°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the month with the shortest days in Port Clinton?

December has the shortest days of the year in Port Clinton, with an average of 9h and 12min of daylight.

What is the average length of the day in December in Port Clinton?

The average day length in December in Port Clinton is 9h and 14min.

When are sunrise and sunset in December in Port Clinton?

In December, on the first day of the month, sunrise is at 7:39 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:12 pm EST.

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

In December, the average sunshine duration is 3.5h.

What is the month with the lowest UV index in Port Clinton?

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

How high is the UV index in December in Port Clinton?

The average daily maximum UV index in December in Port Clinton is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Port Clinton, OH

Average temperature in December - Port Clinton, OH
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 29.5°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in December
Port Clinton, OH

Average pressure in December - Port Clinton, OH
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Port Clinton, OH

Average wind speed in December - Port Clinton, OH
  • Average wind speed in December: 11.9mph

The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in December
Port Clinton, OH

Average humidity in December - Port Clinton, OH
  • Average humidity in December: 81%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Port Clinton, OH

Average rainfall in December - Port Clinton, OH
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is June (4.76").
The driest month (with the least rainfall) is February (1.57").

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Average rainfall days in December
Port Clinton, OH

Average rainfall days in December - Port Clinton, OH
  • Average rainfall days in December: 10 days

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

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Average snowfall in December
Port Clinton, OH

Average snowfall in December - Port Clinton, OH
  • Average snowfall in December: 2.2"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Port Clinton, OH

Average snowfall days in December - Port Clinton, OH
  • Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in December
Port Clinton, OH

Average sea temperature in December - Port Clinton, OH
  • Average sea temperature in December: 37.2°F

The best month for swimming (with the highest average sea temperature) is July (76.6°F).
The coldest month (with the lowest average sea temperature) is February (32.3°F).

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Average daylight in December /
Average sunshine in December
Port Clinton, OH

Average daylight in December / Average sunshine in December - Port Clinton, OH
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 3h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Port Clinton, OH

Average sunshine days in December - Port Clinton, OH
  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (9 days).

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Average UV index in December
Port Clinton, OH

Average UV index in December - Port Clinton, OH
  • Average UV index in December: 1

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

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Average cloud cover in December
Port Clinton, OH

Average cloud cover in December - Port Clinton, OH
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in December
Port Clinton, OH

Average visibility in December - Port Clinton, OH
  • Average visibility in December: 6mi

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

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Port Clinton, Ohio, USA

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