As of October 2021, the average interest rate for a 5-year fixed-rate mortgage in the United States is around 3.0%. To provide a specific rate based on Comericia Bank's history, I would need access to their historical interest rates data. It's also important to note that interest rates can vary significantly depending on various factors such as credit score, loan amount, and location. Please contact your local branch or visit the bank's website for accurate information.