- 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 June 30 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 84.3 °F (29.1 °C). The lowest recored high temperature was 66.9 °F (19.4 °C) in 1965 and the highest recored high temperature was 96.1 °F (35.6 °C) in 2018. The high temperature is usually* between 79.8 °F (26.6 °C) and 88.8 °F (31.6 °C). About a quarter of the time, the high temperature is less than 79.8 °F (26.6 °C), and another quarter of the time, the high temperature is greater than and 88.8 °F (31.6 °C). About 95% of the time, the high temperature has been between 71.2 °F (21.8 °C) and 97.4 °F (36.4 °C).
Low Temperatures
On June 30 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 62.3 °F (16.9 °C). The lowest recored low temperature was 48.0 °F (8.9 °C) in 1989 and the lowest recored low temperature was 78.1 °F (25.6 °C) in 1970. The low temperature is usually* between 57.7 °F (14.3 °C) and 67.0 °F (19.4 °C). About a quarter of the time, the low temperature is less than 57.7 °F (14.3 °C), and another quarter of the time, the low temperature is greater than and 67.0 °F (19.4 °C). About 95% of the time, the low temperature has been between 48.9 °F (9.4 °C) and 75.8 °F (24.3 °C).
Frost
On June 30 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