October 7 - Chicago - Weather History and Averages

High Temperatures

On October 7 in Chicago, IL (Illinois), USA the average high temperature is 67.5 °F (19.7 °C). The lowest recored high temperature was 45.0 °F (7.2 °C) in 1987 and the highest recored high temperature was 91.4 °F (33.0 °C) in 2007. The high temperature is usually* between 61.2 °F (16.2 °C) and 73.7 °F (23.2 °C). About a quarter of the time, the high temperature is less than 61.2 °F (16.2 °C), and another quarter of the time, the high temperature is greater than and 73.7 °F (23.2 °C). About 95% of the time, the high temperature has been between 49.4 °F (9.7 °C) and 85.5 °F (29.7 °C).

Low Temperatures

On October 7 in Chicago, IL (Illinois), USA the average low temperature is 49.2 °F (9.6 °C). The lowest recored low temperature was 24.4 °F (-4.2 °C) in 1964 and the lowest recored low temperature was 71.8 °F (22.1 °C) in 2007. The low temperature is usually* between 43.6 °F (6.5 °C) and 54.8 °F (12.7 °C). About a quarter of the time, the low temperature is less than 43.6 °F (6.5 °C), and another quarter of the time, the low temperature is greater than and 54.8 °F (12.7 °C). About 95% of the time, the low temperature has been between 33.0 °F (0.5 °C) and 65.5 °F (18.6 °C).

Frost

On October 7 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 1.9% 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: