- Integrated Surface Dataset (ISD) station ID: 725340
- Country: US
- State: IL
- Latitude: 41.786
- Longitude: -87.752
A Weather Bureau Army Navy (WBAN) station ID was found for this station. Older data may be available at the WBAN page.
High Temperatures
On September 20 in CHICAGO MIDWAY INTL ARPT the average high temperature is 76.1 °F (24.5 °C). The lowest recored high temperature was 57.9 °F (14.4 °C) in 1962 and the highest recored high temperature was 95.0 °F (35.0 °C) in 2018. The high temperature is usually* between 70.2 °F (21.2 °C) and 82.1 °F (27.8 °C). About a quarter of the time, the high temperature is less than 70.2 °F (21.2 °C), and another quarter of the time, the high temperature is greater than and 82.1 °F (27.8 °C). About 95% of the time, the high temperature has been between 58.9 °F (15.0 °C) and 93.3 °F (34.1 °C).
Low Temperatures
On September 20 in CHICAGO MIDWAY INTL ARPT the average low temperature is 58.3 °F (14.6 °C). The lowest recored low temperature was 37.9 °F (3.3 °C) in 1956 and the lowest recored low temperature was 73.0 °F (22.8 °C) in 1978. The low temperature is usually* between 52.9 °F (11.6 °C) and 63.7 °F (17.6 °C). About a quarter of the time, the low temperature is less than 52.9 °F (11.6 °C), and another quarter of the time, the low temperature is greater than and 63.7 °F (17.6 °C). About 95% of the time, the low temperature has been between 42.7 °F (5.9 °C) and 73.9 °F (23.3 °C).
Frost
On September 20 in CHICAGO MIDWAY INTL ARPT expect the temperatures to drop below freezing for a risk of frost about 0.0% 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: