Contents
- 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
Weather in December
Temperature
December's onset corresponds with a shift in the average high-temperature, moving from a cool 53.1°F (11.7°C) in November to a chilly 43.7°F (6.5°C). In Royersville, the average nighttime temperature during December is a wintry 32°F (0°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Royersville, in December, during 11.5 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 146.5 rainfall days, and 19.65" (499mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Royersville, during December, snow falls for 6.5 days and regularly aggregates up to 1.46" (37mm) of snow. Throughout the year, there are 32.7 snowfall days, and 7.56" (192mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:30 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:19 pm EST.
Sunshine
In Royersville, the average sunshine in December is 4.1h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Royersville, OH
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Royersville, OH
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Royersville, OH
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Royersville, OH
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Royersville, OH
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in December
Royersville, OH
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in December
Royersville, OH
- Average snowfall in December: 1.46"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Royersville, OH
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (9.7 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
Royersville, OH
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
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 August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Royersville, OH
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in December
Royersville, 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 and December (UV index 2).
Average cloud cover in December
Royersville, 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 31).
Average visibility in December
Royersville, OH
- Average visibility in December: 5mi
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
Royersville, Ohio, USA
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