Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On January 31 in CHICAGO the average high temperature is 33.7 °F (0.9 °C). The lowest recored high temperature was 1.2 °F (-17.1 °C) in 2019 and the highest recored high temperature was 55.6 °F (13.1 °C) in 2012. The high temperature is usually* between 25.6 °F (-3.5 °C) and 41.7 °F (5.4 °C). About a quarter of the time, the high temperature is less than 25.6 °F (-3.5 °C), and another quarter of the time, the high temperature is greater than and 41.7 °F (5.4 °C). About 95% of the time, the high temperature has been between 10.4 °F (-12.0 °C) and 56.9 °F (13.9 °C).
Low Temperatures
On January 31 in CHICAGO the average low temperature is 22.6 °F (-5.2 °C). The lowest recored low temperature was -14.3 °F (-25.7 °C) in 2019 and the lowest recored low temperature was 46.2 °F (7.9 °C) in 2012. The low temperature is usually* between 14.0 °F (-10.0 °C) and 31.2 °F (-0.4 °C). About a quarter of the time, the low temperature is less than 14.0 °F (-10.0 °C), and another quarter of the time, the low temperature is greater than and 31.2 °F (-0.4 °C). About 95% of the time, the low temperature has been between -2.4 °F (-19.1 °C) and 47.6 °F (8.7 °C).
Frost
On January 31 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 76.9% 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