December weather forecastBlanchester, OH
December
Weather in December
The first month of the winter, December, is still a cold month in Blanchester, Ohio, with an average temperature varying between 40.6°F (4.8°C) and 29.5°F (-1.4°C).Temperature
December's onset brings a reduction in the average high-temperature, from a cool 50.7°F (10.4°C) in November to an icy 40.6°F (4.8°C). Throughout the month of December, the nighttime temperature dips to an average of 29.5°F (-1.4°C).Humidity
January, February and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Blanchester, in December, it is raining for 9.8 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, in Blanchester, Ohio, there are 139.1 rainfall days, and 16.38" (416mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Blanchester, Ohio, in December, during 7.6 snowfall days, 0.83" (21mm) of snow is typically accumulated. Throughout the year, there are 33.4 snowfall days, and 5.47" (139mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:37 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 5:23 pm EST.
Sunshine
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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Blanchester, OH
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Blanchester, 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
Blanchester, OH
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Blanchester, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January, February and December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Blanchester, OH
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in December
Blanchester, OH
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Blanchester, OH
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Blanchester, OH
- Average snowfall days in December: 7.6 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blanchester, 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 months with the most sunshine are June and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Blanchester, OH
- Average sunshine days in December: 16.1 days
The months with the most sunshine days are October and November (19 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in December
Blanchester, OH
- Average UV index in December: 2
The months with the highest UV index are 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
Blanchester, OH
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Blanchester, 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).
