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
The commencement of December indicates a shift in the average high-temperature, receding from November's frosty 44.8°F (7.1°C) to a wintry 32.4°F (0.2°C). Winnebago reports an average nighttime low-temperature of 22.5°F (-5.3°C) in December.Humidity
In Winnebago, the average relative humidity in December is 82%.Rainfall
In Winnebago, Illinois, in December, during 7.6 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, in Winnebago, there are 148.1 rainfall days, and 28.39" (721mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Winnebago, in December, during 10.1 snowfall days, 2.68" (68mm) of snow is typically accumulated. In Winnebago, Illinois, during the entire year, snow falls for 45.9 days and aggregates up to 15.67" (398mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Winnebago.On the first day of December in Winnebago, Illinois, sunrise is at 7:06 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:34 pm CST.
Sunshine
In December, the average sunshine is 4h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Winnebago. 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: In December, the maximum UV index of 1 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. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Winnebago in December?
What is the average humidity in December in Winnebago?
How much does it rain in Winnebago in December?
How many days does it snow in December in Winnebago?
What is the month with the shortest days in Winnebago?
How many hours of daylight does Winnebago have in December?
When are sunrise and sunset in December in Winnebago?
How long on average sun shines in December in Winnebago?
What are the months with the lowest UV index in Winnebago?
How high is the UV index in December in Winnebago?
Average temperature in December
Winnebago, IL
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in December: 22.5°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in December
Winnebago, IL
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Winnebago, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Winnebago, IL
- Average humidity in December: 82%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in December
Winnebago, IL
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in December
Winnebago, IL
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Winnebago, IL
- Average snowfall in December: 2.68"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Winnebago, IL
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (13 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
Winnebago, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Winnebago, IL
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Winnebago, IL
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Winnebago, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Winnebago, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Winnebago, Illinois, USA
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