| Feet | Temp | Diff |
| 5 | 67.2 | |
| 10 | 66.2 | (1.0) |
| 15 | 66.2 | - |
| 20 | 65.4 | (0.8) |
| 25 | 65.1 | (0.3) |
| 30 | 64.4 | (0.7) |
| 35 | 62.6 | (1.8) |
| 40 | 60.8 | (1.8) |
| 45 | 59.3 | (1.5) |
| 50 | 57.2 | (2.1) |
| 55 | 55.7 | (1.5) |
| 60 | 53.2 | (2.5) |
| 65 | 51.7 | (1.5) |
| 70 | 50.3 | (1.4) |
| 75 | 50.0 | (0.3) |
| 80 | 48.9 | (1.1) |
| 85 | 48.2 | (0.7) |
| 90 | 47.4 | (0.8) |
| 94 | 46.7 | (0.7) |
Temperatures in Fahrenheit, Lake Superior 15 Jul 02