October 12 - Chicago - Weather History and Averages

High Temperatures

On October 12 in Chicago, IL (Illinois), USA the average high temperature is 66.5 °F (19.1 °C). The lowest recored high temperature was 42.6 °F (5.9 °C) in 2006 and the highest recored high temperature was 86.0 °F (30.0 °C) in 2008. The high temperature is usually* between 60.5 °F (15.8 °C) and 72.4 °F (22.5 °C). About a quarter of the time, the high temperature is less than 60.5 °F (15.8 °C), and another quarter of the time, the high temperature is greater than and 72.4 °F (22.5 °C). About 95% of the time, the high temperature has been between 49.1 °F (9.5 °C) and 83.8 °F (28.8 °C).

Low Temperatures

On October 12 in Chicago, IL (Illinois), USA the average low temperature is 47.3 °F (8.5 °C). The lowest recored low temperature was 28.0 °F (-2.2 °C) in 1987 and the lowest recored low temperature was 70.0 °F (21.1 °C) in 1973. The low temperature is usually* between 41.8 °F (5.4 °C) and 52.9 °F (11.6 °C). About a quarter of the time, the low temperature is less than 41.8 °F (5.4 °C), and another quarter of the time, the low temperature is greater than and 52.9 °F (11.6 °C). About 95% of the time, the low temperature has been between 31.2 °F (-0.5 °C) and 63.5 °F (17.5 °C).

Frost

On October 12 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 3.2% 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: