1-month 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-month US government bonds was 4.04 percent on 14 November 2025, versus 4.05 on 13 November.
Sample. In the daily time series presented in the chart, there are a total of 6,075 records. The series covers the span of time going from July 2001 to November 2025.
History. Here are a few summary statistics we computed on the entire sample: the yield had an average value of 1.65 percent; it reached its lowest level of 0.00 on 10 December 2008; it peaked at 6.02 on 26 May 2023.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-11-12 | 4.03 |
| 2025-11-13 | 4.05 |
| 2025-11-14 | 4.04 |
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Series Metadata
| Field | Value |
|---|---|
| Description | 1-month 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 |