Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On October 1 in CHICAGO the average high temperature is 67.1 °F (19.5 °C). The lowest recored high temperature was 52.5 °F (11.4 °C) in 2011 and the highest recored high temperature was 84.4 °F (29.1 °C) in 2019. The high temperature is usually* between 61.8 °F (16.5 °C) and 72.5 °F (22.5 °C). About a quarter of the time, the high temperature is less than 61.8 °F (16.5 °C), and another quarter of the time, the high temperature is greater than and 72.5 °F (22.5 °C). About 95% of the time, the high temperature has been between 51.5 °F (10.8 °C) and 82.7 °F (28.2 °C).
Low Temperatures
On October 1 in CHICAGO the average low temperature is 58.0 °F (14.4 °C). The lowest recored low temperature was 48.0 °F (8.9 °C) in 2011 and the lowest recored low temperature was 72.5 °F (22.5 °C) in 2019. The low temperature is usually* between 53.7 °F (12.1 °C) and 62.2 °F (16.8 °C). About a quarter of the time, the low temperature is less than 53.7 °F (12.1 °C), and another quarter of the time, the low temperature is greater than and 62.2 °F (16.8 °C). About 95% of the time, the low temperature has been between 45.7 °F (7.6 °C) and 70.2 °F (21.2 °C).
Frost
On October 1 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