Chicago Weather in September: Temperature, Precipitation, Wind
In September, Chicago has a warm climate with an average temperature of 20.4°C (68.7°F). Daily highs reach an average of 24.5°C (76.1°F) while overnight lows tend to drop to 16.4°C (61.6°F), making the city quite comfortable during the day but slightly cooler in the evenings.
What is the temperature in Chicago in September?
Average air temperature in Chicago is 20.4°C (68.7°F) in September. The outside temperature in Chicago feels like 20.5°C (68.9°F) on a typical September day. The highest average temperature during sunny days is 24.5°C (76.1°F) and feels like 24.6°C (76.3°F). The lowest average temperature after dark is 16.4°C (61.6°F) which feels like 16.4°C (61.6°F).
How hot is Chicago in September?
The hot temperature in September in Chicago rises to 33.8°C (92.8°F) on sunny days with low cloud coverage and 70% humidity. During hottest days of September it feels like 35.4 °C (95.7°F). The average maximum temp in Chicago is 24.5°C (95.7°F) during day time in September.
How cold is Chicago in September?
The coldest temp in Chicago in September drops to 11.3°C (52.3°F) during the cold nights. With 19.5km/h (12.1mph) winds and 70% humidity it feels like 11.3°C (52.3°F) on the coldest nights. The average minimum temperature is 16.4°C (61.6°F) during night time in September.
Does it rain in Chicago in September?
Yes, it rains for 16 days in Chicago, United States in September averaging 2.77 mm of precipitation. Chicago has a 53.3% chance for rain throughout the entire month of September.
How much does it rain in Chicago throughout September?
Chicago has 2.77 mm (0.11 inch) of rain per day on average in September. It rains for an average of 16 days out of the entire month.
Is Chicago windy in September?
The average speed of wind in Chicago, United States during September is 19.5km/h (12.1mph) and average windgust is 32.4km/h (20.1mph). On some days in September wind can reach up to 29km/h (18mph).
What is the direction of the wind in Chicago in September?
Most days of September the wind is blowing from Southeast direction in Chicago.
What are the humidity levels in Chicago in September?
The average humidity levels in Chicago in September are 70%. Daily humidity levels in Chicago range from 51.7% to 84.8% during September.
How many hours of daylight are in Chicago in September?
Chicago has 12 hours 28 minutes of daylight in September on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Chicago in September is at 6:31:01 and the sunset is at 18:59:29.
What is the cloud coverage in Chicago in September?
Clouds cover 64.3% of the sky on average throughout September in Chicago. The cloud coverage ranges from 12.9% to 99.4% depending on the day of the month.
What is the UV level in September in Chicago?
The average UV index in Chicago is 3.6 in September. UV levels change throughout the month and range from 1 to 8.
What is the solar radiation in Chicago in September?
The average solar radiation is 50.7 W/m2 (Watts per square meter) in Chicago during September. However solar radiation levels change throughout the month and range from 10.6 W/m2 to 98.3 W/m2.
What is the solar energy during September in Chicago?
The average solar energy during September in Chicago is 4.4 MJ/m2 (megajoules per square metre). Solar energy ranges from 0.9 MJ/m2, to 8.4 MJ/m2 during September.
Are there severe weather risks in Chicago in September?
Yes, there is a 12.7% risk for severe weather in Chicago, United States in September.
What is the air pressure in Chicago in September?
On average the air pressure in Chicago in September is 1017.3 mb (millibars). Throughout the month the sea level pressure ranges from 1007.8 mb to 1022 mb.
What is the visibility in Chicago in September?
The average daylight visibility in Chicago in September is 15.4 km (9.6 miles). Depending on the precipitation the visibility ranges from 10.8 km (6.7 miles) to 16 km (9.9 miles) throughout September.
What is the dew point in Chicago in September?
The average dew point in Chicago during September is 14.3°C (57.8°F).
Where is the data for Chicago climate in September coming from?
The climate data for Chicago, Illinois, United States in September is collected from the following weather stations.
- CHICAGO OHARE INTERNATIONAL AIRPORT, IL US
- CHICAGO MIDWAY AIRPORT, IL US
- CHICAGO PALWAUKEE AIRPORT, IL US
- FW1983 Skokie IL US
- FW7086 Franklin Park IL US
- KMDW
- KORD
- KPWK