Monthly air monitoring data summaries for Louisville/Jefferson County can be found in the table below.
Note: The reports are based on data from the previous month's air quality readings.
More detailed air monitoring data can be obtained through the U.S. EPA's AirData page.
| 2020 | January | February | March |
| April | May | June | |
| July | August | September | |
| October | November | December |
| 2019 | January | February | March |
| April | May | June | |
| July | August | September | |
| October | November | December |
| 2018 | January | February | March |
| April | May | June | |
| July | August | September | |
| October | November | December |