- 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 9 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 69.2 °F (20.7 °C). The lowest recored high temperature was 41.4 °F (5.2 °C) in 1960 and the highest recored high temperature was 90.0 °F (32.2 °C) in 1979. The high temperature is usually* between 61.5 °F (16.4 °C) and 76.8 °F (24.9 °C). About a quarter of the time, the high temperature is less than 61.5 °F (16.4 °C), and another quarter of the time, the high temperature is greater than and 76.8 °F (24.9 °C). About 95% of the time, the high temperature has been between 47.0 °F (8.3 °C) and 91.4 °F (33.0 °C).
Low Temperatures
On May 9 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 45.4 °F (7.4 °C). The lowest recored low temperature was 27.0 °F (-2.8 °C) in 1983 and the lowest recored low temperature was 68.9 °F (20.5 °C) in 1979. The low temperature is usually* between 39.5 °F (4.2 °C) and 51.2 °F (10.7 °C). About a quarter of the time, the low temperature is less than 39.5 °F (4.2 °C), and another quarter of the time, the low temperature is greater than and 51.2 °F (10.7 °C). About 95% of the time, the low temperature has been between 28.3 °F (-2.1 °C) and 62.4 °F (16.9 °C).
Frost
On May 9 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 6.3% 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: