United States - 3-Month Treasury Bill Secondary Market Rate was 5.22% in March of 2024, according to the United States Federal Reserve. Historically, United States - 3-Month Treasury Bill Secondary Market Rate reached a record high of 17.14 in December of 1980 and a record low of -0.05 in March of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - 3-Month Treasury Bill Secondary Market Rate - last updated from the United States Federal Reserve on March of 2024.