Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On May 4 in CHICAGO the average high temperature is 57.9 °F (14.4 °C). The lowest recored high temperature was 43.0 °F (6.1 °C) in 2022 and the highest recored high temperature was 81.7 °F (27.6 °C) in 2012. The high temperature is usually* between 50.3 °F (10.2 °C) and 65.6 °F (18.7 °C). About a quarter of the time, the high temperature is less than 50.3 °F (10.2 °C), and another quarter of the time, the high temperature is greater than and 65.6 °F (18.7 °C). About 95% of the time, the high temperature has been between 35.7 °F (2.1 °C) and 80.1 °F (26.7 °C).
Low Temperatures
On May 4 in CHICAGO the average low temperature is 46.1 °F (7.8 °C). The lowest recored low temperature was 38.7 °F (3.7 °C) in 2020 and the lowest recored low temperature was 57.0 °F (13.9 °C) in 2010. The low temperature is usually* between 42.1 °F (5.6 °C) and 50.0 °F (10.0 °C). About a quarter of the time, the low temperature is less than 42.1 °F (5.6 °C), and another quarter of the time, the low temperature is greater than and 50.0 °F (10.0 °C). About 95% of the time, the low temperature has been between 34.6 °F (1.5 °C) and 57.5 °F (14.2 °C).
Frost
On May 4 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 0.8% 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