St. Louis - Recent August Temperatures and Rainfall





The numbers here describe what the August weather in St. Louis, Missouri 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 St. Louis had wet weather.

The climate data come from weather measurements made at St. Louis Lambert International Airport.

Temperature Weather iconTemperature

August temperature averages by year in St. Louis
High °F Low °F Year High °C Low °C
89 71 2018 32 22
85 66 2017 30 19
89 73 2016 32 23
87 69 2015 30 20
89 72 2014 32 22
88 70 2013 31 21
91 68 2012 33 20
91 72 2011 33 22
92 73 2010 33 23
Number of days in August when the temperature in St. Louis rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2018 31 14
2017 31 10
2016 31 12
2015 31 13
2014 31 12
2013 31 14
2012 31 18
2011 31 20
2010 31 20

Rainy Weather iconRain

This table gives the total precipitation that fell on St. Louis 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 St. Louis
Days Year Inches Milli­metres
11 2018 4.7 118
8 2017 3.3 84
10 2016 5.8 147
7 2015 6.7 169
13 2014 5.1 129
4 2013 1.2 30
11 2012 4.0 102
8 2011 1.0 26
6 2010 3.6 92
Reference

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

St. Louis - Recent Years
St. Louis - Extremes
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