September - Chicago O'Hare International Airport - Weather History and Averages

Station: CHICAGO O'HARE INTERNATIONAL (1946 to 2025)
Weather Bureau Army Navy (WBAN): 94846

An Integrated Surface Dataset (ISD) station ID was found for this station. Newer data may be available at the ISD page.

Airport*: Chicago O'Hare International Airport (IATA: ORD, ICAO: KORD)
Country: US
State: IL
Latitude: 41.96
Longitude: -87.932

^{This site or product includes IATA/ICAO List data available from https://github.com/ip2location/ip2location-iata-icao.}

Historic station metadata

Station: CHICAGO OHARE INTL AP (1970 to 1972)
Airport*: Chicago O'Hare International Airport (IATA: ORD, ICAO: KORD)
Country: US
State: IL
Latitude: 41.995
Longitude: -87.934

High Temperatures

On average, the day in September with the warmest high temperature in Chicago O'Hare International Airport is September 2 at an average of 81.9 °F (27.7 °C).

On average, the day in September with the coldest high temperature in Chicago O'Hare International Airport is September 29 at an average of 71.7 °F (22.0 °C).

Records

The warmest recorded high temperature in September in Chicago O'Hare International Airport was 99.3 °F (37.4 °C) on September 2 in the year 1953 at CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 .

The coldest recorded high temperature in September in Chicago O'Hare International Airport was 48.0 °F (8.9 °C) on September 29 in the year 1967 at CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 .

Low Temperatures

On average, the day in September with the warmest low temperature in Chicago O'Hare International Airport is September 1 at an average of 60.6 °F (15.9 °C).

On average, the day in September with the coldest low temperature in Chicago O'Hare International Airport is September 30 at an average of 48.8 °F (9.3 °C).

Records

The warmest recorded low temperature in Chicago O'Hare International Airport was 75.0 °F (23.9 °C) on September 11 in the year 2013 at CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 .

The coldest recorded low temperature in Chicago O'Hare International Airport 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:

September
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30