Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On January 20 in CHICAGO the average high temperature is 29.4 °F (-1.4 °C). The lowest recored high temperature was 2.5 °F (-16.4 °C) in 2008 and the highest recored high temperature was 46.2 °F (7.9 °C) in 2013. The high temperature is usually* between 22.4 °F (-5.4 °C) and 36.4 °F (2.5 °C). About a quarter of the time, the high temperature is less than 22.4 °F (-5.4 °C), and another quarter of the time, the high temperature is greater than and 36.4 °F (2.5 °C). About 95% of the time, the high temperature has been between 9.0 °F (-12.8 °C) and 49.8 °F (9.9 °C).
Low Temperatures
On January 20 in CHICAGO the average low temperature is 18.9 °F (-7.3 °C). The lowest recored low temperature was -3.1 °F (-19.5 °C) in 2008 and the lowest recored low temperature was 36.5 °F (2.5 °C) in 2017. The low temperature is usually* between 10.9 °F (-11.7 °C) and 26.9 °F (-2.8 °C). About a quarter of the time, the low temperature is less than 10.9 °F (-11.7 °C), and another quarter of the time, the low temperature is greater than and 26.9 °F (-2.8 °C). About 95% of the time, the low temperature has been between -4.5 °F (-20.3 °C) and 42.3 °F (5.7 °C).
Frost
On January 20 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 86.4% 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