December weather forecastMaineville, OH
December
Weather in December
The first month of the winter, December, is still a cold month in Maineville, Ohio, with an average temperature fluctuating between 29.5°F (-1.4°C) and 40.8°F (4.9°C).Temperature
Maineville in December experiences a subtle temperature decline, with average high-temperatures reducing from a cool 50.9°F (10.5°C) in November to a wintry 40.8°F (4.9°C). During December, an average low-temperature of 29.5°F (-1.4°C) is observed in Maineville.Humidity
January, February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Maineville, Ohio, during December, the rain falls for 10.9 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Maineville, during the entire year, the rain falls for 151 days and collects up to 23.86" (606mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 6.5 days. Throughout December, 1.65" (42mm) of snow is accumulated. In Maineville, during the entire year, snow falls for 30.1 days and aggregates up to 7.87" (200mm) 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 December, sunrise is at 7:38 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:23 pm EST.
Sunshine
In Maineville, the average sunshine in December is 4.2h.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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Maineville, OH
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Maineville, 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
Maineville, OH
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Maineville, OH
- Average humidity in December: 81%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Maineville, OH
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Maineville, OH
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in December
Maineville, OH
- Average snowfall in December: 1.65"
The months with the highest snowfall are February and March (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Maineville, OH
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (8.3 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
Maineville, 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 12min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Maineville, OH
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
Maineville, 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
Maineville, 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 27).
Average visibility in December
Maineville, 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).





