The values shown are daily data published by the Federal Reserve Board based on the average yield of a range of Treasury securities, all adjusted to the equivalent of a one-year maturity. The current 1 year treasury yield as of March 12, 2020 is 0.39% . Daily Treasury Bill Rates: These rates are the daily secondary market quotation on the most recently auctioned Treasury Bills for each maturity tranche (4-week, 8-week, 13-week, 26-week, and 52-week) for which Treasury currently issues new Bills. Market quotations are obtained at approximately 3:30 PM each business day by Treasury discontinued the 20-year constant maturity series at the end of calendar year 1986 and reinstated that series on October 1, 1993. As a result, there are no 20-year rates available for the time period January 1, 1987 through September 30, 1993. Treasury Yield Curve Rates: These rates are commonly referred to as "Constant Maturity