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Typical weather in Chicago, IL (Illinois), USA on September 4

High Temperatures

On September 4 in Chicago, IL (Illinois), USA the average high temperature is 79.9 °F (26.6 °C). The lowest recored high temperature was 63.0 °F (17.2 °C) in 1974 and the highest recored high temperature was 95.0 °F (35.0 °C) in 1983. The high temperature is usually* between 74.9 °F (23.8 °C) and 84.8 °F (29.4 °C). About a quarter of the time, the high temperature is less than 74.9 °F (23.8 °C), and another quarter of the time, the high temperature is greater than and 84.8 °F (29.4 °C). About 95% of the time, the high temperature has been between 65.4 °F (18.6 °C) and 94.3 °F (34.6 °C).

Low Temperatures

On September 4 in Chicago, IL (Illinois), USA the average low temperature is 62.4 °F (16.9 °C). The lowest recored low temperature was 45.0 °F (7.2 °C) in 1982 and the lowest recored low temperature was 75.0 °F (23.9 °C) in 1985. The low temperature is usually* between 57.7 °F (14.3 °C) and 67.2 °F (19.5 °C). About a quarter of the time, the low temperature is less than 57.7 °F (14.3 °C), and another quarter of the time, the low temperature is greater than and 67.2 °F (19.5 °C). About 95% of the time, the low temperature has been between 48.6 °F (9.2 °C) and 76.2 °F (24.5 °C).

Frost

On September 4 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: