March - CHICAGO - Weather History and Averages

High Temperatures

On average, the day in March with the warmest high temperature in CHICAGO is March 31 at an average of 50.6 °F (10.3 °C).

On average, the day in March with the coldest high temperature in CHICAGO is March 3 at an average of 36.3 °F (2.4 °C).

The warmest recorded high temperature in March in CHICAGO was 78.4 °F (25.8 °C) on March 28 in the year 2025 at CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 .

The coldest recorded high temperature in March in CHICAGO was 13.5 °F (-10.3 °C) on March 3 in the year 2014 at CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 .

On average, the day in March with the warmest low temperature in CHICAGO is March 31 at an average of 37.9 °F (3.3 °C).

On average, the day in March with the coldest low temperature in CHICAGO is March 3 at an average of 27.4 °F (-2.6 °C).

The warmest recorded low temperature in CHICAGO was 66.0 °F (18.9 °C) on March 26 in the year 2007 at CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 .

The coldest recorded low temperature in CHICAGO was -1.3 °F (-18.5 °C) on March 4 in the year 2019 at CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 .

If you would like to see the temperatures for specific days, you can click on the corresponding links below: