Song: "Blue Morning, Blue Day"
Artist: Foreigner
Peak position on the Cashbox Singles chart: #19
Number of weeks on the Cashbox Singles chart: 13
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| December 23, 1978 | 67 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| December 30, 1978 | 58 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| January 13, 1979 | 45 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| January 20, 1979 | 37 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| January 27, 1979 | 28 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| February 3, 1979 | 24 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| February 10, 1979 | 22 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| February 17, 1979 | 20 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| February 24, 1979 | 19 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| March 3, 1979 | 19 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| March 10, 1979 | 36 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| March 17, 1979 | 54 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
| March 24, 1979 | 78 | Blue Morning, Blue Day | Foreigner | Atlantic 3543 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.