- 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 4 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 81.5 °F (27.5 °C). The lowest recored high temperature was 66.0 °F (18.9 °C) in 1974 and the highest recored high temperature was 95.0 °F (35.0 °C) in 1983. The high temperature is usually* between 76.7 °F (24.8 °C) and 86.2 °F (30.1 °C). About a quarter of the time, the high temperature is less than 76.7 °F (24.8 °C), and another quarter of the time, the high temperature is greater than and 86.2 °F (30.1 °C). About 95% of the time, the high temperature has been between 67.7 °F (19.8 °C) and 95.2 °F (35.1 °C).
Low Temperatures
On September 4 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 59.3 °F (15.2 °C). The lowest recored low temperature was 45.0 °F (7.2 °C) in 1982 and the lowest recored low temperature was 73.9 °F (23.3 °C) in 1971. The low temperature is usually* between 54.4 °F (12.4 °C) and 64.2 °F (17.9 °C). About a quarter of the time, the low temperature is less than 54.4 °F (12.4 °C), and another quarter of the time, the low temperature is greater than and 64.2 °F (17.9 °C). About 95% of the time, the low temperature has been between 45.0 °F (7.2 °C) and 73.6 °F (23.1 °C).
Frost
On September 4 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: