- 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 October 9 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 67.8 °F (19.9 °C). The lowest recored high temperature was 44.4 °F (6.9 °C) in 1964 and the highest recored high temperature was 87.1 °F (30.6 °C) in 2007. The high temperature is usually* between 61.4 °F (16.3 °C) and 74.1 °F (23.4 °C). About a quarter of the time, the high temperature is less than 61.4 °F (16.3 °C), and another quarter of the time, the high temperature is greater than and 74.1 °F (23.4 °C). About 95% of the time, the high temperature has been between 49.4 °F (9.6 °C) and 86.2 °F (30.1 °C).
Low Temperatures
On October 9 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 46.0 °F (7.8 °C). The lowest recored low temperature was 24.4 °F (-4.2 °C) in 1964 and the lowest recored low temperature was 68.4 °F (20.2 °C) in 1949. The low temperature is usually* between 40.0 °F (4.5 °C) and 52.0 °F (11.1 °C). About a quarter of the time, the low temperature is less than 40.0 °F (4.5 °C), and another quarter of the time, the low temperature is greater than and 52.0 °F (11.1 °C). About 95% of the time, the low temperature has been between 28.7 °F (-1.8 °C) and 63.4 °F (17.4 °C).
Frost
On October 9 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 5.7% 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: