Welch High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| OCCT | ||||||
| 2010 | Algebra I | End of course | % met std | 96% | 96% | 69% |
| 2011 | Algebra I | End of course | % met std | 84% | 84% | 74% |
| 2010 | English II | End of course | % met std | 86% | 86% | 85% |
| 2011 | English II | End of course | % met std | 90% | 90% | 86% |
| 2009 | Math | End of course | % met std | 89% | 90% | 81% |
| 2009 | Reading | End of course | % met std | 92% | 92% | 77% |
| 2009 | Science | End of course | % met std | 87% | 87% | N/A |
| 2010 | Science | End of course | % met std | 89% | N/A | 75% |
| 2011 | Science | End of course | % met std | 80% | 80% | 79% |
Some data by SchoolDigger.com.