Chicago Weather In October

The record high temperature in Chicago for the last 52 years in October was 91 degrees Fahrenheit, most recently registered on October 23, 1963, and the regular high is 62. The lowest documented temperature in October for Chicago for the past 52 years was 17 most recently registered on October 23, 1981, while the regular low temperature for a given day during the month is 42.

US National Weather Service Chicago October Weather data records that on October 23, 1981, the high temperature did not exceed 35 degrees Fahrenheit, the lowest high measured in Chicago in the past 52 years. Weather Service records additionally show that on October 3, 2005, the recorded low temperature for the day did not drop below 71 degrees, the highest low measured in Chicago in the last 52 years.

Weather Service historical data shows that the average daily high temperature in Chicago on October First is 71 degrees Fahrenheit and the average high on the last day of October is 59 degrees. The daily low temperature in Chicago on October First averages 48 degrees Fahrenheit and the low on the last day of October averages 42 degrees.

Chicago usually receives an average of 2.71 inches of rain during the month. The most rain recorded in a single day, as shown by October Chicago Weather data, was 4.25 inches on October 10, 1969. Chicago receives an average of 0.4 inches of snow in October.On October 27, 1967 Chicago received 4 inches of rain, the greatest snowfall measured in a single day in October.