Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On March 20 in CHICAGO the average high temperature is 48.2 °F (9.0 °C). The lowest recored high temperature was 31.1 °F (-0.5 °C) in 2013 and the highest recored high temperature was 75.7 °F (24.3 °C) in 2012. The high temperature is usually* between 40.2 °F (4.6 °C) and 56.2 °F (13.5 °C). About a quarter of the time, the high temperature is less than 40.2 °F (4.6 °C), and another quarter of the time, the high temperature is greater than and 56.2 °F (13.5 °C). About 95% of the time, the high temperature has been between 24.9 °F (-3.9 °C) and 71.5 °F (21.9 °C).
Low Temperatures
On March 20 in CHICAGO the average low temperature is 34.7 °F (1.5 °C). The lowest recored low temperature was 14.7 °F (-9.6 °C) in 2013 and the lowest recored low temperature was 52.7 °F (11.5 °C) in 2012. The low temperature is usually* between 29.4 °F (-1.4 °C) and 39.9 °F (4.4 °C). About a quarter of the time, the low temperature is less than 29.4 °F (-1.4 °C), and another quarter of the time, the low temperature is greater than and 39.9 °F (4.4 °C). About 95% of the time, the low temperature has been between 19.4 °F (-7.0 °C) and 49.9 °F (9.9 °C).
Frost
On March 20 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 36.6% 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