- 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 18 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 63.5 °F (17.5 °C). The lowest recored high temperature was 37.9 °F (3.3 °C) in 1972 and the highest recored high temperature was 83.3 °F (28.5 °C) in 1953. The high temperature is usually* between 56.9 °F (13.9 °C) and 70.1 °F (21.1 °C). About a quarter of the time, the high temperature is less than 56.9 °F (13.9 °C), and another quarter of the time, the high temperature is greater than and 70.1 °F (21.1 °C). About 95% of the time, the high temperature has been between 44.5 °F (6.9 °C) and 82.5 °F (28.1 °C).
Low Temperatures
On October 18 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 42.1 °F (5.6 °C). The lowest recored low temperature was 18.3 °F (-7.6 °C) in 1948 and the lowest recored low temperature was 64.4 °F (18.0 °C) in 2007. The low temperature is usually* between 36.1 °F (2.3 °C) and 48.1 °F (8.9 °C). About a quarter of the time, the low temperature is less than 36.1 °F (2.3 °C), and another quarter of the time, the low temperature is greater than and 48.1 °F (8.9 °C). About 95% of the time, the low temperature has been between 24.6 °F (-4.1 °C) and 59.5 °F (15.3 °C).
Frost
On October 18 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 12.9% 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: