December weather - Winter 2024

Weather in December
Frequently asked questions
Average temperature in December
Average pressure in December
Average wind speed in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average snowfall in December
Average snowfall days in December
Average daylight in December
Average sunshine in December
Average sunshine days in December
Average UV index in December
Average cloud cover in December
Average visibility in December

A beautiful park in spring next to the John A Roebling suspension bridge in Cincinnati, Ohio

Weather in December

The final act in Cincinnati's weather theatre, December ushers in the full thrust of winter. As the last page on the calendar turns, the city's weather finalizes its cycle, characterized by the crisp cold, shorter days, and the grandeur of snow. The plunge in temperature is unmistakable, with ranges fluctuating between 30.6°F (-0.8°C) and 41.9°F (5.5°C), the cold intensifying by the day. While the year's closing month brings the cycle full circle, it aptly prepares the city for the snow-dusted spectacle that is a Cincinnati winter.

Temperature

During the transition into December, Cincinnati observes a decrease in the average high-temperature, falling from a fresh 51.3°F (10.7°C) in November to an icy 41.9°F (5.5°C). During December, Cincinnati records an average temperature of 30.6°F (-0.8°C) at night.

Humidity

February and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In Cincinnati, in December, it is raining for 10.4 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 150.9 rainfall days, and 27.64" (702mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Cincinnati, in December, snow falls for 4.5 days, with typically accumulated 1.3" (33mm) of snow. In Cincinnati, during the entire year, snow falls for 20.7 days and aggregates up to 6.85" (174mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Cincinnati.
On the first day of the month, sunrise is at 7:38 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:57 am and sunset at 5:25 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

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Frequently asked questions

Is December cold in Cincinnati?

During December, Cincinnati experiences an average high-temperature of 41.9°F (5.5°C) and a low-temperature of 30.6°F (-0.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 91.4°F (33°C).

What is the most humid month in Cincinnati?

February and December, with an average relative humidity of 81%, are most humid months in Cincinnati, Ohio.

What is the average humidity in December in Cincinnati?

The average relative humidity in December in Cincinnati, Ohio, is 81%.

How many days does it rain in December in Cincinnati?

In Cincinnati, in December, during 10.4 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

How many days does it snow in December in Cincinnati?

In Cincinnati, in December, during 4.5 snowfall days, 1.3" (33mm) of snow is typically accumulated.

What is the month with the shortest days in Cincinnati?

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

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

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

When is the sunrise / sunset in December in Cincinnati?

On the first day of December in Cincinnati, sunrise is at 7:38 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 5:25 pm EST.

How long on average sun shines in December in Cincinnati?

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

What are the months with the lowest UV index in Cincinnati?

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

What is the UV index intensity in December in Cincinnati?

In Cincinnati, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

51.3°F 10.7°C

41.9°F 5.5°C

36.1°F 2.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8mph 12.9km/h

8.5mph 13.7km/h

9.3mph 15km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

19.2

16.1

17.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Cincinnati, OH

Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

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Average pressure in December
Cincinnati, 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 (29.94"Hg).

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Average wind speed in December
Cincinnati, OH

Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Cincinnati, OH

Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).

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Average rainfall in December
Cincinnati, OH

Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in December
Cincinnati, OH

Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.2 days).

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Average snowfall in December
Cincinnati, OH

Average snowfall in December: 1.3"

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

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Average snowfall days in December
Cincinnati, OH

Average snowfall days in December: 4.5 days

The months with the highest number of snowfall days are January and February (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Cincinnati, 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 July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Cincinnati, OH

Average sunshine days in December: 16.1 days

The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in December
Cincinnati, OH

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
Cincinnati, OH

Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Cincinnati, OH

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).

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December weather forecast
Cincinnati, OH

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