1-year par yield on Treasuries (percentage points; constant maturity; nominal) - United States - Department of the Treasury - Daily
This series is part of the dataset: US Treasury constant-maturity par yields (Department of the Treasury)
Download Full Dataset (.xlsx)Latest updates. According to data published by the US Treasury, the par yield on 1-year US government bonds was 3.70 percent on 14 November 2025, versus 3.68 on 13 November.
Sample. There are 8,974 data points in the daily series shown in the graph above. The time period covered by the series stretches from January 1990 to November 2025.
History. Here's a glimpse of some statistics we calculated on the whole sample: the yield recorded a minimum of 0.04 percent on 21 May 2021; it recorded a maximum of 8.64 on 26 April 1990; it had a mean value of 3.00.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-11-12 | 3.65 |
| 2025-11-13 | 3.68 |
| 2025-11-14 | 3.7 |
Suggestion. One of the pluses of our web site is that we provide complete metadata. Find it below to learn more about the attributes of the time series that you use in your research.
Not for investment purposes. Data and analyses distributed on FetchSeries are not not supposed to be used for investment purposes or as a basis for making financial decisions. Users should seek professional advice and perform independent analysis before pledging money to any investment.
Series Metadata
| Field | Value |
|---|---|
| Description | 1-year yield US Treasury par yield curve |
| Country | United States |
| Economic concept | Interest rate |
| Data type | Constant-maturity nominal par yield |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | None |
| Frequency | Daily |
| Unit | Percentage points |
| Source | U.S. Department of the Treasury |
| Source type | Federal Administration |
| Data licence | Not copyrightable under U.S. law |
| Measure type | Interpolated level (constant maturity) |
Series in the same data set: Nominal yields
Series in the same data set: Real yields
| Series Name | Observations | Start Date | End Date |
|---|---|---|---|
| 5-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5722 | 2003-01-02 | 2025-11-14 |
| 7-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5722 | 2003-01-02 | 2025-11-14 |
| 10-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5722 | 2003-01-02 | 2025-11-14 |
| 20-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5331 | 2004-07-27 | 2025-11-14 |
| 30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 3937 | 2010-02-22 | 2025-11-14 |