Chicago - Recent August Temperatures and Rainfall





The numbers here describe what the August weather in Chicago, Illinois was like for every year since 2010. A series of tables gives August data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many really hot days occurred each August. Then there's information on how much rain actually landed this month during recent years, as well as how often Chicago had wet weather.

The climate data come from weather measurements made at Chicago's Midway Airport.

Temperature Weather iconTemperature

August temperature averages by year in Chicago
High °F Low °F Year High °C Low °C
86 69 2018 30 20
81 64 2017 27 18
85 71 2016 29 22
83 66 2015 28 19
83 68 2014 28 20
83 65 2013 29 19
85 66 2012 29 19
83 66 2011 28 19
85 69 2010 30 21
Number of days in August when the temperature in Chicago rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2018 31 7
2017 30 1
2016 31 6
2015 30 5
2014 31 1
2013 31 6
2012 31 10
2011 31 3
2010 31 7

Rainy Weather iconRain

This table gives the total precipitation that fell on Chicago during August in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for August in Chicago
Days Year Inches Milli­metres
14 2018 4.0 101
9 2017 1.7 43
13 2016 5.8 147
8 2015 3.8 95
13 2014 9.0 229
7 2013 2.5 64
8 2012 6.1 154
10 2011 3.9 100
9 2010 3.5 88
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Chicago - Recent Years
Chicago - Extremes
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