Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On February 27 in CHICAGO the average high temperature is 39.7 °F (4.3 °C). The lowest recored high temperature was 16.2 °F (-8.8 °C) in 2015 and the highest recored high temperature was 66.4 °F (19.1 °C) in 2024. The high temperature is usually* between 30.8 °F (-0.7 °C) and 48.5 °F (9.2 °C). About a quarter of the time, the high temperature is less than 30.8 °F (-0.7 °C), and another quarter of the time, the high temperature is greater than and 48.5 °F (9.2 °C). About 95% of the time, the high temperature has been between 13.9 °F (-10.1 °C) and 65.4 °F (18.6 °C).
Low Temperatures
On February 27 in CHICAGO the average low temperature is 28.1 °F (-2.2 °C). The lowest recored low temperature was 4.1 °F (-15.5 °C) in 2014 and the lowest recored low temperature was 54.7 °F (12.6 °C) in 2024. The low temperature is usually* between 21.0 °F (-6.1 °C) and 35.2 °F (1.8 °C). About a quarter of the time, the low temperature is less than 21.0 °F (-6.1 °C), and another quarter of the time, the low temperature is greater than and 35.2 °F (1.8 °C). About 95% of the time, the low temperature has been between 7.5 °F (-13.6 °C) and 48.7 °F (9.3 °C).
Frost
On February 27 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 64.5% 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