Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On September 9 in CHICAGO the average high temperature is 72.7 °F (22.6 °C). The lowest recored high temperature was 61.9 °F (16.6 °C) in 2010 and the highest recored high temperature was 89.8 °F (32.1 °C) in 2013. The high temperature is usually* between 68.0 °F (20.0 °C) and 77.4 °F (25.2 °C). About a quarter of the time, the high temperature is less than 68.0 °F (20.0 °C), and another quarter of the time, the high temperature is greater than and 77.4 °F (25.2 °C). About 95% of the time, the high temperature has been between 59.1 °F (15.1 °C) and 86.3 °F (30.2 °C).
Low Temperatures
On September 9 in CHICAGO the average low temperature is 64.4 °F (18.0 °C). The lowest recored low temperature was 54.3 °F (12.4 °C) in 2008 and the lowest recored low temperature was 72.9 °F (22.7 °C) in 2016. The low temperature is usually* between 61.2 °F (16.2 °C) and 67.7 °F (19.8 °C). About a quarter of the time, the low temperature is less than 61.2 °F (16.2 °C), and another quarter of the time, the low temperature is greater than and 67.7 °F (19.8 °C). About 95% of the time, the low temperature has been between 55.0 °F (12.8 °C) and 73.9 °F (23.3 °C).
Frost
On September 9 in CHICAGO 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 — Integrated Surface Dataset (ISD) station ID: 997338 — from year 2007 to 2024