Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On May 11 in CHICAGO the average high temperature is 61.6 °F (16.4 °C). The lowest recored high temperature was 41.9 °F (5.5 °C) in 2020 and the highest recored high temperature was 83.5 °F (28.6 °C) in 2022. The high temperature is usually* between 53.7 °F (12.0 °C) and 69.5 °F (20.8 °C). About a quarter of the time, the high temperature is less than 53.7 °F (12.0 °C), and another quarter of the time, the high temperature is greater than and 69.5 °F (20.8 °C). About 95% of the time, the high temperature has been between 38.7 °F (3.7 °C) and 84.5 °F (29.2 °C).
Low Temperatures
On May 11 in CHICAGO the average low temperature is 48.2 °F (9.0 °C). The lowest recored low temperature was 37.8 °F (3.2 °C) in 2020 and the lowest recored low temperature was 58.1 °F (14.5 °C) in 2011. The low temperature is usually* between 44.2 °F (6.8 °C) and 52.2 °F (11.2 °C). About a quarter of the time, the low temperature is less than 44.2 °F (6.8 °C), and another quarter of the time, the low temperature is greater than and 52.2 °F (11.2 °C). About 95% of the time, the low temperature has been between 36.5 °F (2.5 °C) and 59.9 °F (15.5 °C).
Frost
On May 11 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 0.3% 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 2025