Indianapolis IN Recent August Temperatures, Rainfall

The numbers here describe what the August weather in Indianapolis, Indiana 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 Indianapolis had wet weather.

The climate data come from weather measurements made at Indianapolis International Airport.

Temperature

August temperature averages by year in Indianapolis
High °F	Low °F	Year	High °C	Low °C
84	65	2023	29	19
85	66	2022	29	19
87	68	2021	31	20
84	65	2020	29	18
84	65	2019	29	19
85	67	2018	29	20
83	63	2017	28	17
86	70	2016	30	21
83	63	2015	28	17
83	65	2014	28	18
85	65	2013	29	18
86	64	2012	30	18
88	66	2011	31	19
90	69	2010	32	20

Number of days in August when the temperature in Indianapolis rose to at least 70 or 90 degrees Fahrenheit
Year	70 °F 21 °C	90 °F 32 °C
2023	31	6
2022	31	6
2021	31	11
2020	31	3
2019	31	3
2018	31	6
2017	31	2
2016	31	12
2015	31	0
2014	31	2
2013	31	6
2012	31	8
2011	31	12
2010	31	16

Rain

This table gives the total precipitation that fell on Indianapolis 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 Indianapolis
Days	Year	Inches	Millimetres
9	2023	3.0	75
9	2022	4.4	113
10	2021	2.0	51
5	2020	2.1	53
10	2019	3.5	90
10	2018	4.3	108
9	2017	1.8	45
10	2016	7.3	186
6	2015	1.6	39
14	2014	3.0	75
4	2013	1.2	29
8	2012	6.5	165
8	2011	1.1	28
4	2010	0.4	9

Indianapolis - Recent August Temperatures and Rainfall

Temperature

Rain

Reference

More on Weather in Indianapolis