- 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 September 12 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 78.5 °F (25.9 °C). The lowest recored high temperature was 55.9 °F (13.3 °C) in 2014 and the highest recored high temperature was 93.4 °F (34.1 °C) in 1952. The high temperature is usually* between 73.3 °F (23.0 °C) and 83.8 °F (28.8 °C). About a quarter of the time, the high temperature is less than 73.3 °F (23.0 °C), and another quarter of the time, the high temperature is greater than and 83.8 °F (28.8 °C). About 95% of the time, the high temperature has been between 63.4 °F (17.4 °C) and 93.7 °F (34.3 °C).
Low Temperatures
On September 12 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 56.4 °F (13.5 °C). The lowest recored low temperature was 38.3 °F (3.5 °C) in 1964 and the lowest recored low temperature was 70.9 °F (21.6 °C) in 1978. The low temperature is usually* between 51.4 °F (10.8 °C) and 61.4 °F (16.3 °C). About a quarter of the time, the low temperature is less than 51.4 °F (10.8 °C), and another quarter of the time, the low temperature is greater than and 61.4 °F (16.3 °C). About 95% of the time, the low temperature has been between 41.8 °F (5.4 °C) and 70.9 °F (21.6 °C).
Frost
On September 12 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 0.1% 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 2024
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— Weather Bureau Army Navy (WBAN): 94846 — from year 1970 to 1972