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Typical weather in Chicago, IL (Illinois), USA on September 8

High Temperatures

On September 8 in Chicago, IL (Illinois), USA the average high temperature is 78.6 °F (25.9 °C). The lowest recored high temperature was 63.9 °F (17.7 °C) in 1995 and the highest recored high temperature was 99.0 °F (37.2 °C) in 1985. The high temperature is usually* between 73.3 °F (22.9 °C) and 84.0 °F (28.9 °C). About a quarter of the time, the high temperature is less than 73.3 °F (22.9 °C), and another quarter of the time, the high temperature is greater than and 84.0 °F (28.9 °C). About 95% of the time, the high temperature has been between 63.1 °F (17.3 °C) and 94.2 °F (34.5 °C).

Low Temperatures

On September 8 in Chicago, IL (Illinois), USA the average low temperature is 60.8 °F (16.0 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1986 and the lowest recored low temperature was 75.2 °F (24.0 °C) in 2001. The low temperature is usually* between 55.8 °F (13.2 °C) and 65.8 °F (18.8 °C). About a quarter of the time, the low temperature is less than 55.8 °F (13.2 °C), and another quarter of the time, the low temperature is greater than and 65.8 °F (18.8 °C). About 95% of the time, the low temperature has been between 46.3 °F (7.9 °C) and 75.4 °F (24.1 °C).

Frost

On September 8 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 0.0% 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: