Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On September 19 in CHICAGO the average high temperature is 73.2 °F (22.9 °C). The lowest recored high temperature was 60.3 °F (15.7 °C) in 2020 and the highest recored high temperature was 87.1 °F (30.6 °C) in 2016. The high temperature is usually* between 68.5 °F (20.3 °C) and 78.0 °F (25.5 °C). About a quarter of the time, the high temperature is less than 68.5 °F (20.3 °C), and another quarter of the time, the high temperature is greater than and 78.0 °F (25.5 °C). About 95% of the time, the high temperature has been between 59.4 °F (15.2 °C) and 87.0 °F (30.6 °C).
Low Temperatures
On September 19 in CHICAGO the average low temperature is 64.2 °F (17.9 °C). The lowest recored low temperature was 54.1 °F (12.3 °C) in 2020 and the lowest recored low temperature was 71.2 °F (21.8 °C) in 2007. The low temperature is usually* between 60.7 °F (16.0 °C) and 67.7 °F (19.9 °C). About a quarter of the time, the low temperature is less than 60.7 °F (16.0 °C), and another quarter of the time, the low temperature is greater than and 67.7 °F (19.9 °C). About 95% of the time, the low temperature has been between 54.0 °F (12.2 °C) and 74.4 °F (23.6 °C).
Frost
On September 19 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 2005 to 2024