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
With December's onset, the average high-temperature recedes from November's cool 53.2°F (11.8°C) to a chilly 43.5°F (6.4°C). Scheller's December nights cool down to an average low-temperature of 31.3°F (-0.4°C).Humidity
The average relative humidity in December is 77%.Rainfall
In Scheller, during December, the rain falls for 7.8 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Scheller, during the entire year, the rain falls for 122.7 days and collects up to 18.03" (458mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, in Scheller, Illinois, it is snowing for 2.8 days. Throughout December, 0.63" (16mm) of snow is accumulated. Throughout the year, there are 14.5 snowfall days, and 2.64" (67mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:54 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December in Scheller is 4.7h.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 low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
How cold is December in Scheller?
What is the average humidity in December in Scheller?
How much does it rain in Scheller in December?
How many days does it snow in December in Scheller?
What is the month with the shortest days in Scheller?
What is the average length of the day in December in Scheller?
When are sunrise and sunset in December in Scheller?
How long on average sun shines in December in Scheller?
When is the lowest UV index in Scheller?
What is the UV index reading in December in Scheller?
Average temperature in December
Scheller, IL
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Scheller, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Scheller, IL
- Average wind speed in December: 9mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in December
Scheller, IL
- Average humidity in December: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Scheller, IL
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in December
Scheller, IL
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Scheller, IL
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Scheller, IL
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is January (4.5 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
Scheller, IL
- Average daylight in December: 9h and 4min
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 36min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Scheller, IL
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in December
Scheller, IL
- 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, November and December (UV index 2).
Average cloud cover in December
Scheller, IL
- Average cloud cover in December: 49
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Scheller, IL
- 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).
Scheller, Illinois, USA
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