- Integrated Surface Dataset (ISD) station ID: 725300
- Country: US
- State: IL
- Latitude: 41.96
- Longitude: -87.932
A Weather Bureau Army Navy (WBAN) station ID was found for this station. Older data may be available at the WBAN page.
High Temperatures
On September 7 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 80.6 °F (27.0 °C). The lowest recored high temperature was 63.3 °F (17.4 °C) in 1949 and the highest recored high temperature was 99.3 °F (37.4 °C) in 1960. The high temperature is usually* between 75.4 °F (24.1 °C) and 85.8 °F (29.9 °C). About a quarter of the time, the high temperature is less than 75.4 °F (24.1 °C), and another quarter of the time, the high temperature is greater than and 85.8 °F (29.9 °C). About 95% of the time, the high temperature has been between 65.4 °F (18.6 °C) and 95.8 °F (35.4 °C).
Low Temperatures
On September 7 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 58.1 °F (14.5 °C). The lowest recored low temperature was 39.0 °F (3.9 °C) in 1962 and the lowest recored low temperature was 75.0 °F (23.9 °C) in 2016. The low temperature is usually* between 52.6 °F (11.4 °C) and 63.5 °F (17.5 °C). About a quarter of the time, the low temperature is less than 52.6 °F (11.4 °C), and another quarter of the time, the low temperature is greater than and 63.5 °F (17.5 °C). About 95% of the time, the low temperature has been between 42.2 °F (5.7 °C) and 74.0 °F (23.3 °C).
Frost
On September 7 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 0.1% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations: