December weather forecastMahomet, IL
December
Weather in December
December, the first month of the winter in Mahomet, is also an icy month, with an average temperature varying between 37.6°F (3.1°C) and 27.5°F (-2.5°C).Temperature
December indicates a shift in the average high-temperature, from November's chilly 49.1°F (9.5°C) to an icy 37.6°F (3.1°C). Mahomet's nights in December experience an average temperature drop to a subzero cold 27.5°F (-2.5°C).Humidity
In Mahomet, Illinois, the average relative humidity in December is 80%.Rainfall
December is the month with the least rainfall in Mahomet, Illinois. Rain falls for 8.4 days and accumulates 1.65" (42mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Mahomet, during December, snow falls for 7.1 days and regularly aggregates up to 2.09" (53mm) of snow. In Mahomet, during the entire year, snow falls for 33.9 days and aggregates up to 11.81" (300mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Mahomet, Illinois.On the first day of the month, sunrise is at 6:57 am and sunset at 4:28 pm. On the last day of December, in Mahomet, Illinois, sunrise is at 7:15 am and sunset at 4:37 pm CST.
Sunshine
In Mahomet, Illinois, the average sunshine in December is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mahomet. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following 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. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mahomet, IL
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Mahomet, 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 (29.92"Hg).
Average wind speed in December
Mahomet, IL
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Mahomet, IL
- Average humidity in December: 80%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Mahomet, IL
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is December (1.65").
Average rainfall days in December
Mahomet, IL
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Mahomet, IL
- Average snowfall in December: 2.09"
The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mahomet, IL
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is January (11.4 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
Mahomet, IL
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Mahomet, IL
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in December
Mahomet, 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
Mahomet, IL
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in December
Mahomet, 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).
