30 month CD rates at Salem Five have a new lower rate. The new 30 month CD interest rate is 1.44 percent with a yield of 1.45 percent. The old 30 month CD interest rate was 1.59 percent with a yield of 1.60 percent. View a history of intest rate changes to this 2.5 year certificate of deposit by going to Salem Five 30 Month CD Rates.