Station information
- Integrated Surface Dataset (ISD) station ID: 725340
- Weather Bureau Army Navy (WBAN): 14819
- Country: US
- State: IL
- Latitude: 41.786
- Longitude: -87.752
High Temperatures
On September 30 in CHICAGO MIDWAY INTL ARPT the average high temperature is 72.1 °F (22.3 °C). The lowest recored high temperature was 54.0 °F (12.2 °C) in 1972 and the highest recored high temperature was 91.9 °F (33.3 °C) in 1971. The high temperature is usually* between 66.2 °F (19.0 °C) and 78.1 °F (25.6 °C). About a quarter of the time, the high temperature is less than 66.2 °F (19.0 °C), and another quarter of the time, the high temperature is greater than and 78.1 °F (25.6 °C). About 95% of the time, the high temperature has been between 54.8 °F (12.7 °C) and 89.4 °F (31.9 °C).
Low Temperatures
On September 30 in CHICAGO MIDWAY INTL ARPT the average low temperature is 52.5 °F (11.4 °C). The lowest recored low temperature was 36.0 °F (2.2 °C) in 1993 and the lowest recored low temperature was 69.1 °F (20.6 °C) in 1954. The low temperature is usually* between 47.2 °F (8.4 °C) and 57.7 °F (14.3 °C). About a quarter of the time, the low temperature is less than 47.2 °F (8.4 °C), and another quarter of the time, the low temperature is greater than and 57.7 °F (14.3 °C). About 95% of the time, the low temperature has been between 37.2 °F (2.9 °C) and 67.8 °F (19.9 °C).
Frost
On September 30 in CHICAGO MIDWAY INTL ARPT expect the temperatures to drop below freezing for a risk of frost about 0.4% 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 MIDWAY INTL ARPT — Integrated Surface Dataset (ISD) station ID: 725340 — Weather Bureau Army Navy (WBAN): 14819 — from year 1973 to 2024
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— Weather Bureau Army Navy (WBAN): 14819 — from year 1948 to 1972