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 cool 50.9°F (10.5°C) to a cold 41.5°F (5.3°C). In Jacksonville, December nights witness a steady temperature drop to a freezing cold 29.7°F (-1.3°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Jacksonville, in December, it is raining for 11.6 days, with typically 2.72" (69mm) of accumulated precipitation. In Jacksonville, during the entire year, the rain falls for 161.8 days and collects up to 30.04" (763mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Jacksonville, in December, during 8.1 snowfall days, 1.57" (40mm) of snow is typically accumulated. Throughout the year, in Jacksonville, Ohio, there are 38.3 snowfall days, and 11.38" (289mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:30 am and sunset at 5:05 pm. On the last day of December, in Jacksonville, sunrise is at 7:48 am and sunset at 5:14 pm EST.
Sunshine
In Jacksonville, 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 Jacksonville. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Jacksonville in December?
What is the average humidity in December in Jacksonville?
How many days does it rain in December in Jacksonville?
How many days does it snow in December in Jacksonville?
What is the month with the shortest days in Jacksonville?
What is the average length of the day in December in Jacksonville?
When is the sunrise / sunset in December in Jacksonville?
How many hours of sunshine does Jacksonville have in December?
What is the month with the lowest UV index in Jacksonville?
What is the UV index reading in December in Jacksonville?
Average temperature in December
Jacksonville, OH
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in December
Jacksonville, OH
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Jacksonville, OH
- Average wind speed in December: 6.8mph
The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in December
Jacksonville, 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 August (75%).
Average rainfall in December
Jacksonville, OH
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Jacksonville, OH
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10 days).
Average snowfall in December
Jacksonville, OH
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Jacksonville, OH
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Jacksonville, OH
- Average daylight in December: 9h and 2min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Jacksonville, OH
- Average sunshine days in December: 13 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in December
Jacksonville, 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
Jacksonville, OH
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Jacksonville, OH
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Jacksonville, Ohio, USA
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