- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On March 11 in CHICAGO the average high temperature is 46.7 °F (8.2 °C). The lowest recored high temperature was 27.7 °F (-2.4 °C) in 2017 and the highest recored high temperature was 66.6 °F (19.2 °C) in 2024. The high temperature is usually* between 38.7 °F (3.7 °C) and 54.7 °F (12.6 °C). About a quarter of the time, the high temperature is less than 38.7 °F (3.7 °C), and another quarter of the time, the high temperature is greater than and 54.7 °F (12.6 °C). About 95% of the time, the high temperature has been between 23.4 °F (-4.8 °C) and 70.0 °F (21.1 °C).
Low Temperatures
On March 11 in CHICAGO the average low temperature is 33.1 °F (0.6 °C). The lowest recored low temperature was 18.0 °F (-7.8 °C) in 2009 and the lowest recored low temperature was 42.6 °F (5.9 °C) in 2012. The low temperature is usually* between 27.9 °F (-2.3 °C) and 38.2 °F (3.5 °C). About a quarter of the time, the low temperature is less than 27.9 °F (-2.3 °C), and another quarter of the time, the low temperature is greater than and 38.2 °F (3.5 °C). About 95% of the time, the low temperature has been between 18.1 °F (-7.7 °C) and 48.0 °F (8.9 °C).
Frost
On March 11 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 44.4% 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 2025