- Latitude: 41.8375511
- Longitude: -87.6818441
High Temperatures
On average, the day in September with the warmest high temperature in Chicago, IL (Illinois), USA is September 1 at an average of 80.7 °F (27.0 °C).
On average, the day in September with the coldest high temperature in Chicago, IL (Illinois), USA is September 29 at an average of 70.1 °F (21.2 °C).
Records
The warmest recorded high temperature in September in Chicago, IL (Illinois), USA was 100.9 °F (38.3 °C) on September 2 in the year 1953 at CHICAGO MIDWAY AP — Weather Bureau Army Navy (WBAN): 14819 .
The coldest recorded high temperature in September in Chicago, IL (Illinois), USA was 45.0 °F (7.2 °C) on September 29 in the year 1967 at NAVAL AIR STATION — Weather Bureau Army Navy (WBAN): 14855 .
Low Temperatures
On average, the day in September with the warmest low temperature in Chicago, IL (Illinois), USA is September 1 at an average of 63.5 °F (17.5 °C).
On average, the day in September with the coldest low temperature in Chicago, IL (Illinois), USA is September 30 at an average of 51.6 °F (10.9 °C).
Records
The warmest recorded low temperature in Chicago, IL (Illinois), USA was 81.0 °F (27.2 °C) on September 13 in the year 1995 at CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — Weather Bureau Army Navy (WBAN): 94866 .
The coldest recorded low temperature in Chicago, IL (Illinois), USA was 28.9 °F (-1.7 °C) on September 23 in the year 1995 at CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 .
Details
If you would like to see the temperatures for specific days, you can click on the corresponding links below: