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
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a cool 50.7°F (10.4°C) to a wintry 39.6°F (4.2°C). During the nights in December, Oconee experiences a consistent average temperature of 28.4°F (-2°C).Humidity
The average relative humidity in December in Oconee is 78%.Rainfall
The months with the least rainfall in Oconee are February and December Rain falls for 7.5 days and accumulates 0.98" (25mm) of rain.Snowfall
January through April, November and December are months with snowfall in Oconee, Illinois. In Oconee, in December, during 4.3 snowfall days, 1.22" (31mm) of snow is typically accumulated. In Oconee, during the entire year, snow falls for 21.4 days and aggregates up to 5.2" (132mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:57 am and sunset at 4:33 pm. On the last day of December, in Oconee, sunrise is at 7:16 am and sunset at 4:43 pm CST.
Sunshine
In December, the average sunshine is 4.6h.UV index
January, February, November 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 minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
Is it cold in Oconee during December?
What is the average humidity in December in Oconee?
What is the driest month in Oconee?
How many days does it rain in December in Oconee?
How many days does it snow in December in Oconee?
What is the month with the shortest days in Oconee?
How many hours of daylight does Oconee have in December?
When is the sunrise / sunset in December in Oconee?
How long on average sun shines in December in Oconee?
What are the months with the lowest UV index in Oconee?
What is the UV index reading in December in Oconee?
Average temperature in December
Oconee, IL
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 28.4°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Oconee, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Oconee, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in December
Oconee, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Oconee, IL
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are February and December (0.98").
Average rainfall days in December
Oconee, IL
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Oconee, IL
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Oconee, IL
- Average snowfall days in December: 4.3 days
The months with the highest number of snowfall days are January and February (6.3 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
Oconee, IL
- Average daylight in December: 9h and 3min
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 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Oconee, IL
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in December
Oconee, IL
- 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
Oconee, IL
- Average cloud cover in December: 52
The months with the most cloud cover are January and February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in December
Oconee, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Oconee, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
