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Typical weather in Chicago, IL (Illinois), USA on July 15

High Temperatures

On July 15 in Chicago, IL (Illinois), USA the average high temperature is 84.2 °F (29.0 °C). The lowest recored high temperature was 63.1 °F (17.3 °C) in 2015 and the highest recored high temperature was 102.9 °F (39.4 °C) in 1988. The high temperature is usually* between 79.2 °F (26.2 °C) and 89.1 °F (31.7 °C). About a quarter of the time, the high temperature is less than 79.2 °F (26.2 °C), and another quarter of the time, the high temperature is greater than and 89.1 °F (31.7 °C). About 95% of the time, the high temperature has been between 69.8 °F (21.0 °C) and 98.6 °F (37.0 °C).

Low Temperatures

On July 15 in Chicago, IL (Illinois), USA the average low temperature is 66.8 °F (19.3 °C). The lowest recored low temperature was 50.0 °F (10.0 °C) in 1967 and the lowest recored low temperature was 82.9 °F (28.3 °C) in 1980. The low temperature is usually* between 62.7 °F (17.1 °C) and 70.9 °F (21.6 °C). About a quarter of the time, the low temperature is less than 62.7 °F (17.1 °C), and another quarter of the time, the low temperature is greater than and 70.9 °F (21.6 °C). About 95% of the time, the low temperature has been between 55.0 °F (12.8 °C) and 78.6 °F (25.9 °C).

Frost

On July 15 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: