October 3 - Chicago - Weather History and Averages

High Temperatures

On October 3 in Chicago, IL (Illinois), USA the average high temperature is 69.7 °F (20.9 °C). The lowest recored high temperature was 48.9 °F (9.4 °C) in 1987 and the highest recored high temperature was 90.0 °F (32.2 °C) in 1954. The high temperature is usually* between 63.5 °F (17.5 °C) and 75.8 °F (24.3 °C). About a quarter of the time, the high temperature is less than 63.5 °F (17.5 °C), and another quarter of the time, the high temperature is greater than and 75.8 °F (24.3 °C). About 95% of the time, the high temperature has been between 51.8 °F (11.0 °C) and 87.5 °F (30.8 °C).

Low Temperatures

On October 3 in Chicago, IL (Illinois), USA the average low temperature is 51.5 °F (10.8 °C). The lowest recored low temperature was 28.0 °F (-2.2 °C) in 1974 and the lowest recored low temperature was 70.0 °F (21.1 °C) in 1983. The low temperature is usually* between 45.5 °F (7.5 °C) and 57.6 °F (14.2 °C). About a quarter of the time, the low temperature is less than 45.5 °F (7.5 °C), and another quarter of the time, the low temperature is greater than and 57.6 °F (14.2 °C). About 95% of the time, the low temperature has been between 33.9 °F (1.1 °C) and 69.1 °F (20.6 °C).

Frost

On October 3 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 1.5% 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: