- 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 May 16 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 72.4 °F (22.4 °C). The lowest recored high temperature was 52.0 °F (11.1 °C) in 2011 and the highest recored high temperature was 93.9 °F (34.4 °C) in 2025. The high temperature is usually* between 65.5 °F (18.6 °C) and 79.3 °F (26.3 °C). About a quarter of the time, the high temperature is less than 65.5 °F (18.6 °C), and another quarter of the time, the high temperature is greater than and 79.3 °F (26.3 °C). About 95% of the time, the high temperature has been between 52.3 °F (11.3 °C) and 92.5 °F (33.6 °C).
Low Temperatures
On May 16 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 48.6 °F (9.2 °C). The lowest recored low temperature was 35.1 °F (1.7 °C) in 2016 and the lowest recored low temperature was 69.1 °F (20.6 °C) in 1962. The low temperature is usually* between 43.5 °F (6.4 °C) and 53.7 °F (12.1 °C). About a quarter of the time, the low temperature is less than 43.5 °F (6.4 °C), and another quarter of the time, the low temperature is greater than and 53.7 °F (12.1 °C). About 95% of the time, the low temperature has been between 33.8 °F (1.0 °C) and 63.4 °F (17.4 °C).
Frost
On May 16 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 1.4% 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: