Climate and monthly weather forecastCicero, IL
Climate and monthly weather forecast
The climate of Cicero
Cicero, positioned in the state of Illinois, USA, possesses the predominantly Dfa type or Humid Continental climate as defined by the Köppen climate classification. This implies that there is no dry season in this area, with hot summers and generally moderate rainfall throughout the year.Observing the annual weather cycle, the temperatures vary considerably, with the coldest month of the year being typically January with average lows of 19.4°F (-7°C) and highs of 28.9°F (-1.7°C). July usually steams as the hottest month having average lows of 67.5°F (19.7°C) and highs of 79.7°F (26.5°C). Throughout the year, monthly rainfall levels fluctuate between 0.47" (12mm) in December and a peak of 1.69" (43mm) in May.
Something worthy of note is the light snowfall in this area, with a maximum of 1.54" (39mm) in February and a little as 0" (0mm) from May to September. Interestingly, despite occurring in fewer days, the rainfall in May is significantly heavier than any other month.
The best time to visit Cicero
Planning a trip to Cicero, the ideal selections would be between June and September. It is during this period that the weather is at its most congenial. Temperatures are balmy averaging between 72.3°F (22.4°C) to 79.7°F (26.5°C). Furthermore, the hours of sunshine peak with daylight hours extending up to 15.2 hours in June.The worst time to visit Cicero
The months of January and February are typically regarded as less favorable for visiting Cicero. During this period, the average high temperatures rarely exceed 32.4°F (0.2°C). The combination of higher cloud% and fewer hours of daylight culminate into less appealing conditions. Additionally, January experiences the greatest number of snowfall days, thereby posing potential travel risks.Spring weather in Cicero
In Cicero, spring spans from March to May. March experiences average temperatures from 32.2°F (0.1°C) to 43.3°F (6.3°C), then increasing in April and May from 40.8°F (4.9°C) to 64.4°F (18°C) respectively. Rainfall is prevalent during this season, peaking at 1.69" (43mm) in May, the wettest month of the year.Summer weather in Cicero
June through August represents the summer period in Cicero. Temperatures average from 67.5°F (19.7°C) to 79.7°F (26.5°C), with the longest days of the year observed in June, with an average daylight length of 15.2 hours. Rainfall during the summer months, ranges between 1.54" (39mm) and 1.65" (42mm), with relative humidity around 76 to 77%.Autumn weather in Cicero
The autumn months in Cicero, between September and November, see the average temperatures drop gradually from 60.4°F (15.8°C) to 35.4°F (1.9°C). Despite the cooling temperatures, the rainfall levels decrease from 1.14" (29mm) in September to 0.55" (14mm) in November.Winter weather in Cicero
Winter months, December through February, are typically cold with temperatures dropping between 19.4°F (-7°C) to 32.4°F (0.2°C). Snowfall is expected during this time, with February recording the most snow, approximately 1.54" (39mm). This season also sees shorter daylight hours, averaging 9.5 hours in December and slightly elevating to 10.6 hours in February. On colder days, the windiness can make the temperatures feel even colder.Weather in January
January in Cicero, Illinois experiences a favored blanket of snow, dressing the cityscape in a winter wonderland. With relative humidity peaking to 82% and temperatures predominantly ranging from 19.4°F (-7°C) to 28.9°F (-1.7°C), the weather leans towards the colder side. Weather in January »Weather in February
In February, Cicero witnesses a slight increase in temperatures. The weather patterns, while still cold, show signs of the approaching spring, bringing an end to the long winter nights. Snowfall reduces, though winter sports enthusiasts can still catch the tail end of the skiing season. Weather in February »Weather in March
As March rolls around, Cicero begins transitioning from winter to spring. An increase in temperature is accompanied by a decrease in snow fall and an increase in rainfall to 0.55" (14mm). The sunlight hours extend, providing a much-welcomed break from the dark winter months. Weather in March »Weather in April
By the time April arrives in Cicero, the city has fully transitioned into spring with temperatures climbing to 40.8°F (4.9°C) to 53.2°F (11.8°C). An increased rainfall to 1.02" (26mm) marks the beginning of the rainier months. Weather in April »Weather in May
May ushers in a distinct change in Cicero as the city gears up for the warm summer months. Rainfall increases significantly to 1.69" (43mm) compared to the preceding month. Pleasant weather conditions favor outdoor activities, from cycling and hiking to barbeques and garden parties. Weather in May »Weather in June
As June rears its head, summer is in full swing in Cicero. Temperature fluctuations are less, with the weather maintaining a consistent warmth. Outdoor recreation activities from canoeing to zip-lining become popular pastimes. While the city basks in the sunlight, residents protect themselves against UV Index reaching six, the year’s highest. Weather in June »Weather in July
The pinnacle of summer in Cicero is July, with temperatures soaring, and precipitation showing a slight decrease. The city thrives in the summertime heat with residents and tourists alike enjoying water-based activities. With the rising temperatures, comes an increase in outdoor concerts, events, and festivals. Weather in July »Weather in August
August continues to maintain a semblance of the July heat with a slight drop in temperature. The city continues its love affair with summer, filled with festivals, concerts, and outdoor dining experiences. Water sports continue to be a favorite among residents and tourists. Weather in August »Weather in September
September marks the gradual transition from the hot summer months to the slightly cooler autumn season in Cicero. The decrease in temperature becomes evident as the month progresses. Autumn colors start to peak through the summer greens, painting a beautiful landscape. Weather in September »Weather in October
October embraces the full swing of the autumn season in Cicero. Seasons changing brings a chill to the air, particularly around Halloween. The colorful fall foliage coupled with the crisp air makes it a picturesque time to visit Cicero. Weather in October »Weather in November
In November, Cicero faces the gradual arrival of winter and the first hints of snow. As temperature levels drop to 35.4°F (1.9°C) at the lower end, the climates start to cool rapidly. The festive season continues, with Thanksgiving celebrations taking place under the late autumn sky. Weather in November »Weather in December
By December, winter has officially arrived in Cicero, bringing an end to the calender year. The festive holiday spirit sets in as temperatures fall to 26.8°F (-2.9°C). Snowfall returns, dusting the city in a blanket of white, creating postcard-worthy holiday scenes. Weather in December »Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Temperature records mark January as the coldest month, with highs averaging 28.9°F (-1.7°C) and lows at 19.4°F (-7°C).
January is the most humid month, with an average relative humidity of 82%.
Throughout the year, there are 121.4 rainfall days, and 11.85" (301mm) of precipitation is accumulated.
January through April, October through December are months with snowfall in Cicero.
Throughout the year, there are 35.5 snowfall days, and 4.53" (115mm) of snow is accumulated.
With an average of 3.8h of sunshine, January has the least sunshine of the year.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
February is the month with the most snowfall. Snow falls for 8.8 days and accumulates 1.54" (39mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The month with the most rainfall is May, when the rain falls for 14.4 days and typically aggregates up to 1.69" (43mm) of precipitation.
May through September are months without snowfall.
With an average of 15h and 12min of daylight, June has the longest days of the year in Cicero.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
Cicero, Illinois, records the warmest temperatures in July, averaging a high of 79.7°F (26.5°C) and a low of 67.5°F (19.7°C).
With an average of 10.6h of sunshine, August has the most sunshine of the year.
The least humid month is October, with an average relative humidity of 72%.
The month with the least rainfall is December, when the rain falls for 6 days and typically collects 0.47" (12mm) of precipitation.
December has the shortest days of the year in Cicero, with an average of 9h and 12min of daylight.
Average temperature
Cicero, IL
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).
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
Cicero, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - 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
Cicero, IL
- Average wind speed in January:
11.2mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.7mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8.3mph - Average wind speed in October:
10.1mph - Average wind speed in November:
10.8mph - 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
Cicero, IL
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Cicero, IL
- Average rainfall in January:
0.51" - Average rainfall in February:
0.51" - Average rainfall in March:
0.55" - Average rainfall in April:
1.02" - Average rainfall in May:
1.69" - Average rainfall in June:
1.65"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.22" - Average rainfall in September:
1.14" - Average rainfall in October:
0.98" - Average rainfall in November:
0.55" - 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
Cicero, IL
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
4 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
14.4 days
- Average rainfall days in July:
14.7 days - Average rainfall days in August:
12 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
7.3 days - 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
Cicero, IL
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
Cicero, IL
- Average snowfall days in January:
10.4 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
4.1 days - Average snowfall days in April:
1.5 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.2 days - Average snowfall days in November:
3 days - 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 / Average sunshine
Cicero, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
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 January:
3h and 48min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 6min
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
Cicero, IL
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
18.4 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
13.9 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
19.6 days - 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
Cicero, IL
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
Cicero, IL
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
Cicero, IL
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).
