December weather forecastRoseville, OH
December
Weather in December
The first month of the winter, December, is also a wintry month in Roseville, Ohio, with an average temperature fluctuating between 40.5°F (4.7°C) and 29.3°F (-1.5°C).Temperature
Roseville's December weather features a mild decline in high-temperatures, reducing from a cool 50.2°F (10.1°C) in November to a cold 40.5°F (4.7°C). Roseville's average low-temperature in December is measured at a subzero cold 29.3°F (-1.5°C).Humidity
In Roseville, Ohio, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 11.2 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. Throughout the year, in Roseville, there are 154.5 rainfall days, and 24.29" (617mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Roseville, in December, snow falls for 8.9 days, with typically accumulated 1.93" (49mm) of snow. Throughout the year, there are 41.3 snowfall days, and 12.13" (308mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 5:04 pm. On the last day of December, in Roseville, sunrise is at 7:49 am and sunset at 5:13 pm EST.
Sunshine
In Roseville, the average sunshine in December is 3.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Roseville. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Arm yourself against UV rays' harm with protective apparel and UV-filtering 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
Roseville, OH
- Average high temperature in December: 40.5°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in December
Roseville, OH
- Average pressure in December: 30.12"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).
Average wind speed in December
Roseville, OH
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in December
Roseville, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Roseville, OH
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Roseville, OH
- Average rainfall days in December: 11.2 days
The months with the highest number of rainy days are May and July (17.4 days).
The months with the least rainy days are February and November (8.4 days).
Average snowfall in December
Roseville, OH
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Roseville, OH
- Average snowfall days in December: 8.9 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Roseville, OH
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 3h and 54min
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 30min).
Average sunshine days in December
Roseville, OH
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in December
Roseville, OH
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Roseville, OH
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Roseville, OH
- Average visibility in December: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
