Song: "September"
Artist: Earth, Wind & Fire
Peak position on the Cashbox Singles chart: #6
Number of weeks on the Cashbox Singles chart: 17
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| November 18, 1978 | 79 | September | Earth, Wind & Fire | ARC 10854 |
| November 25, 1978 | 58 | September | Earth, Wind & Fire | ARC 10854 |
| December 2, 1978 | 46 | September | Earth, Wind & Fire | ARC 10854 |
| December 9, 1978 | 34 | September | Earth, Wind & Fire | ARC 10854 |
| December 16, 1978 | 25 | September | Earth, Wind & Fire | ARC 10854 |
| December 23, 1978 | 16 | September | Earth, Wind & Fire | ARC 10854 |
| December 30, 1978 | 10 | September | Earth, Wind & Fire | ARC 10854 |
| January 13, 1979 | 7 | September | Earth, Wind & Fire | ARC 10854 |
| January 20, 1979 | 6 | September | Earth, Wind & Fire | ARC 10854 |
| January 27, 1979 | 6 | September | Earth, Wind & Fire | ARC 10854 |
| February 3, 1979 | 8 | September | Earth, Wind & Fire | ARC 10854 |
| February 10, 1979 | 12 | September | Earth, Wind & Fire | ARC 10854 |
| February 17, 1979 | 22 | September | Earth, Wind & Fire | ARC 10854 |
| February 24, 1979 | 35 | September | Earth, Wind & Fire | ARC 10854 |
| March 3, 1979 | 40 | September | Earth, Wind & Fire | ARC 10854 |
| March 10, 1979 | 55 | September | Earth, Wind & Fire | ARC 10854 |
| March 17, 1979 | 64 | September | Earth, Wind & Fire | ARC 10854 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.