December weather forecastSciota, IL
December
Weather in December
December, the first month of the winter in Sciota, is also an icy month, with an average temperature varying between 25.7°F (-3.5°C) and 37°F (2.8°C).Temperature
The commencement of December indicates a shift in the average high-temperature, receding from November's chilly 48.9°F (9.4°C) to an icy 37°F (2.8°C). Sciota's temperature lowers to a mean of 25.7°F (-3.5°C) during the nights in December.Humidity
In December, the average relative humidity in Sciota, Illinois, is 79%.Rainfall
In Sciota, in December, during 5.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, in Sciota, there are 122.7 rainfall days, and 17.8" (452mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Sciota, Illinois, in December, snow falls for 4.9 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, there are 25.2 snowfall days, and 5.47" (139mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December in Sciota, Illinois, is 4.6h.UV index
The months with the lowest UV index in Sciota are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sciota, IL
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Sciota, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Sciota, IL
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Sciota, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Sciota, IL
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Sciota, IL
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in December
Sciota, IL
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sciota, IL
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (7.6 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
Sciota, IL
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Sciota, IL
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in December
Sciota, 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
Sciota, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in December
Sciota, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





