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 brings a decrease in the average high-temperature, falling from November's chilly 48.4°F (9.1°C) to a wintry 38.7°F (3.7°C). Sunbury observes an average nighttime low-temperature of 28.2°F (-2.1°C) during the month of December.Humidity
In December, the average relative humidity is 82%.Rainfall
In Sunbury, Ohio, in December, during 8.6 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 134 rainfall days, and 16.38" (416mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Sunbury, in December, during 5.4 snowfall days, 0.98" (25mm) of snow is typically accumulated. In Sunbury, during the entire year, snow falls for 27.6 days and aggregates up to 5.39" (137mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:35 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:15 pm EST.
Sunshine
In Sunbury, the average sunshine in December is 4h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Sunbury, OH
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Sunbury, OH
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Sunbury, OH
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Sunbury, OH
- Average humidity in December: 82%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall in December
Sunbury, OH
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in December
Sunbury, OH
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Sunbury, OH
- Average snowfall in December: 0.98"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Sunbury, OH
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is January (8.6 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
Sunbury, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Sunbury, OH
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in December
Sunbury, 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
Sunbury, 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 30).
Average visibility in December
Sunbury, 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).
Sunbury, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location