The 30 month CD rate at Astoria Bank has a new lower rate alert. The new lower 30 month CD interest rate is 0.65 percent with a yield of 0.65 percent. The old 30 month CD rate was 0.75 percent with a yield of 0.75 percent. View a history of rate changes to Astoria Bank's 30 month certificate of deposit at Astoria Bank 30 Month CD Rate.