- 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 8 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 80.3 °F (26.8 °C). The lowest recored high temperature was 65.8 °F (18.8 °C) in 1979 and the highest recored high temperature was 99.0 °F (37.2 °C) in 1985. The high temperature is usually* between 75.1 °F (23.9 °C) and 85.6 °F (29.8 °C). About a quarter of the time, the high temperature is less than 75.1 °F (23.9 °C), and another quarter of the time, the high temperature is greater than and 85.6 °F (29.8 °C). About 95% of the time, the high temperature has been between 65.1 °F (18.4 °C) and 95.6 °F (35.3 °C).
Low Temperatures
On September 8 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 58.1 °F (14.5 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1986 and the lowest recored low temperature was 73.4 °F (23.0 °C) in 1947. The low temperature is usually* between 52.9 °F (11.6 °C) and 63.3 °F (17.4 °C). About a quarter of the time, the low temperature is less than 52.9 °F (11.6 °C), and another quarter of the time, the low temperature is greater than and 63.3 °F (17.4 °C). About 95% of the time, the low temperature has been between 43.0 °F (6.1 °C) and 73.2 °F (22.9 °C).
Frost
On September 8 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 0.0% 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: