- Weather Bureau Army Navy (WBAN): 94846
- Country: US
- State: IL
- Latitude: 41.96
- Longitude: -87.932
An Integrated Surface Dataset (ISD) station ID was found for this station. Newer data may be available at the ISD page.
High Temperatures
On July 17 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 86.2 °F (30.1 °C). The lowest recored high temperature was 73.4 °F (23.0 °C) in 1951 and the highest recored high temperature was 99.0 °F (37.2 °C) in 2012. The high temperature is usually* between 82.3 °F (27.9 °C) and 90.1 °F (32.3 °C). About a quarter of the time, the high temperature is less than 82.3 °F (27.9 °C), and another quarter of the time, the high temperature is greater than and 90.1 °F (32.3 °C). About 95% of the time, the high temperature has been between 74.8 °F (23.8 °C) and 97.6 °F (36.5 °C).
Low Temperatures
On July 17 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 64.9 °F (18.3 °C). The lowest recored low temperature was 51.1 °F (10.6 °C) in 1985 and the lowest recored low temperature was 75.9 °F (24.4 °C) in 1997. The low temperature is usually* between 60.8 °F (16.0 °C) and 69.0 °F (20.6 °C). About a quarter of the time, the low temperature is less than 60.8 °F (16.0 °C), and another quarter of the time, the low temperature is greater than and 69.0 °F (20.6 °C). About 95% of the time, the low temperature has been between 53.0 °F (11.7 °C) and 76.8 °F (24.9 °C).
Frost
On July 17 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:
- CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 — from year 1947 to 2025
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— Weather Bureau Army Navy (WBAN): 94846 — from year 1970 to 1972