December weather forecastWinslow, IL
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Winslow, Illinois, with temperature in the range of an average low of 21.4°F (-5.9°C) and an average high of 31.6°F (-0.2°C).Temperature
As Winslow, Illinois, enters December, the average high-temperature decreases from the a frosty 43.9°F (6.6°C) of November to a subzero cold 31.6°F (-0.2°C). In Winslow, the expected average low-temperature for December is a still freezing cold 21.4°F (-5.9°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In Winslow, in December, it is raining for 7.4 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, in Winslow, there are 145.9 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Winslow, in December, snow falls for 11.3 days, with typically accumulated 2.52" (64mm) of snow. Throughout the year, in Winslow, Illinois, there are 50.1 snowfall days, and 13.62" (346mm) of snow is accumulated.Daylight
The month with the shortest days in Winslow, Illinois, is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:36 pm CST.
Sunshine
In Winslow, the average sunshine in December is 4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Winslow, IL
- Average high temperature in December: 31.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 21.4°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in December
Winslow, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Winslow, IL
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Winslow, IL
- Average humidity in December: 83%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in December
Winslow, IL
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Winslow, IL
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall in December
Winslow, IL
- Average snowfall in December: 2.52"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Winslow, IL
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Winslow, IL
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 4h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Winslow, IL
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in December
Winslow, 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 and December (UV index 1).
Average cloud cover in December
Winslow, 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
Winslow, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
