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
December brings a drop in Cicero's average high-temperature, falling from a frosty 45.9°F (7.7°C) in November to a wintry 35.1°F (1.7°C). Cicero experiences a subtle drop in temperature during the December nights, recording an average of 26.8°F (-2.9°C).Humidity
The average relative humidity in December is 80%.Rainfall
December is the month with the least rainfall. Rain falls for 6 days and accumulates 0.47" (12mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Cicero, in December, during 7.5 snowfall days, 0.43" (11mm) of snow is typically accumulated. In Cicero, during the entire year, snow falls for 35.5 days and aggregates up to 4.53" (115mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:30 pm CST.
Sunshine
In December, the average sunshine is 4.1h.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 ordinary individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. 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
How cold is 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 Cicero have in December?
When are sunrise and sunset in December?
How long on average sun shines in December in Cicero?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Cicero, IL
- Average high temperature in December: 35.1°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Cicero, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Cicero, IL
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Cicero, IL
- Average humidity in December: 80%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Cicero, IL
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in December
Cicero, IL
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Cicero, IL
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Cicero, IL
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (10.4 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
Cicero, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Cicero, IL
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is December (19.9 days).
The months with the least sunshine days are June and July (12.5 days).
Average UV index in December
Cicero, IL
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Cicero, IL
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Cicero, 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).
Cicero, Illinois, USA
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