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Typical weather in Chicago, IL (Illinois), USA on July 17

High Temperatures

On July 17 in Chicago, IL (Illinois), USA the average high temperature is 84.8 °F (29.4 °C). The lowest recored high temperature was 66.0 °F (18.9 °C) in 1979 and the highest recored high temperature was 100.4 °F (38.0 °C) in 2012. The high temperature is usually* between 80.4 °F (26.9 °C) and 89.3 °F (31.8 °C). About a quarter of the time, the high temperature is less than 80.4 °F (26.9 °C), and another quarter of the time, the high temperature is greater than and 89.3 °F (31.8 °C). About 95% of the time, the high temperature has been between 72.0 °F (22.2 °C) and 97.7 °F (36.5 °C).

Low Temperatures

On July 17 in Chicago, IL (Illinois), USA the average low temperature is 67.4 °F (19.7 °C). The lowest recored low temperature was 2.8 °F (-16.2 °C) in 1994 and the lowest recored low temperature was 82.6 °F (28.1 °C) in 2012. The low temperature is usually* between 63.2 °F (17.3 °C) and 71.6 °F (22.0 °C). About a quarter of the time, the low temperature is less than 63.2 °F (17.3 °C), and another quarter of the time, the low temperature is greater than and 71.6 °F (22.0 °C). About 95% of the time, the low temperature has been between 55.1 °F (12.8 °C) and 79.7 °F (26.5 °C).

Frost

On July 17 in Chicago, IL (Illinois), USA 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: