Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On February 25 in CHICAGO the average high temperature is 37.4 °F (3.0 °C). The lowest recored high temperature was 21.9 °F (-5.6 °C) in 2014 and the highest recored high temperature was 59.2 °F (15.1 °C) in 2024. The high temperature is usually* between 30.4 °F (-0.9 °C) and 44.3 °F (6.9 °C). About a quarter of the time, the high temperature is less than 30.4 °F (-0.9 °C), and another quarter of the time, the high temperature is greater than and 44.3 °F (6.9 °C). About 95% of the time, the high temperature has been between 17.1 °F (-8.3 °C) and 57.7 °F (14.3 °C).
Low Temperatures
On February 25 in CHICAGO the average low temperature is 26.6 °F (-3.0 °C). The lowest recored low temperature was 9.9 °F (-12.3 °C) in 2019 and the lowest recored low temperature was 39.2 °F (4.0 °C) in 2025. The low temperature is usually* between 21.1 °F (-6.1 °C) and 32.2 °F (0.1 °C). About a quarter of the time, the low temperature is less than 21.1 °F (-6.1 °C), and another quarter of the time, the low temperature is greater than and 32.2 °F (0.1 °C). About 95% of the time, the low temperature has been between 10.6 °F (-11.9 °C) and 42.7 °F (6.0 °C).
Frost
On February 25 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 74.3% 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 2007 to 2025