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
In the transition to December, Mount Auburn observes a drop in the average high-temperature, moving from a fresh 50.2°F (10.1°C) in November to a wintry 38.7°F (3.7°C). Throughout December, an average low-temperature of 28.2°F (-2.1°C) is expected.Humidity
In December, the average relative humidity is 78%.Rainfall
December is the month with the least rainfall. Rain falls for 7.5 days and accumulates 1.14" (29mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Mount Auburn, during December, snow falls for 6.5 days and regularly aggregates up to 1.06" (27mm) of snow. In Mount Auburn, during the entire year, snow falls for 27.9 days and aggregates up to 6.14" (156mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Mount Auburn.On the first day of December, sunrise is at 6:59 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:42 pm CST.
Sunshine
In December, the average sunshine 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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
What is the driest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Mount Auburn have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Mount Auburn have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Mount Auburn, IL
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in December
Mount Auburn, IL
- Average pressure in December: 30.12"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
Mount Auburn, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Mount Auburn, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Mount Auburn, IL
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in December
Mount Auburn, IL
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Mount Auburn, IL
- Average snowfall in December: 1.06"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Mount Auburn, IL
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (8.3 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
Mount Auburn, IL
- 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: 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
Mount Auburn, IL
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (11 days).
Average UV index in December
Mount Auburn, 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
Mount Auburn, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Mount Auburn, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Mount Auburn, Illinois, USA
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