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Typical weather in Chicago, IL (Illinois), USA on September 22

High Temperatures

On September 22 in Chicago, IL (Illinois), USA the average high temperature is 72.2 °F (22.3 °C). The lowest recored high temperature was 50.0 °F (10.0 °C) in 1995 and the highest recored high temperature was 95.0 °F (35.0 °C) in 2017. The high temperature is usually* between 66.3 °F (19.0 °C) and 78.1 °F (25.6 °C). About a quarter of the time, the high temperature is less than 66.3 °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 55.1 °F (12.8 °C) and 89.3 °F (31.8 °C).

Low Temperatures

On September 22 in Chicago, IL (Illinois), USA the average low temperature is 55.3 °F (12.9 °C). The lowest recored low temperature was 32.0 °F (0.0 °C) in 1974 and the lowest recored low temperature was 75.0 °F (23.9 °C) in 2017. The low temperature is usually* between 49.3 °F (9.6 °C) and 61.2 °F (16.2 °C). About a quarter of the time, the low temperature is less than 49.3 °F (9.6 °C), and another quarter of the time, the low temperature is greater than and 61.2 °F (16.2 °C). About 95% of the time, the low temperature has been between 38.1 °F (3.4 °C) and 72.5 °F (22.5 °C).

Frost

On September 22 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 0.4% of the time.

Usually* in this context means around 50% of the time, assuming a normal distribution of values.

Data Source(s)

The data used to compute the average high/low temperatures for this location were taken from the following stations: