December weather forecastCincinnati, OH
December
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
Cincinnati experiences a temperature shift at the start of December, with average high-temperatures adjusting from a fresh 51.3°F (10.7°C) in November to an icy 41.9°F (5.5°C). The nighttime temperature, during December, averages of 30.6°F (-0.8°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months in Cincinnati, Ohio.Rainfall
In Cincinnati, in December, it is raining for 10.4 days, with typically 2.2" (56mm) of accumulated precipitation. In Cincinnati, during the entire year, the rain falls for 150.9 days and collects up to 27.64" (702mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Cincinnati, during December, snow falls for 4.5 days and regularly aggregates up to 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
December has the shortest days of the year, with an average of 9h and 30min of daylight.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, the average sunshine in December is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. When the Sun is at its strongest around midday, find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in December /
Average sunshine in December
Cincinnati, OH
- Average daylight in December: 9h and 30min
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 6min
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).
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).
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).
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).
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).
