4-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 4-month US government bonds was 3.88 percent on 14 August 2026, as on the previous day.
Sample. This daily series has a total of 955 observations. The time span covered by the series is from October 2022 to August 2026.
History. Have a look at a few summary statistics we calculated on the whole sample: the yield reached a maximum of 5.64 percent on 6 October 2023; it hit a trough of 3.58 on 6 January 2026; it had a mean value of 4.68.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-08-12 | 3.89 |
| 2026-08-13 | 3.88 |
| 2026-08-14 | 3.88 |
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Series Metadata
| Field | Value |
|---|---|
| Description | 4-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
Discover the other time series included in this data set.
Nominal yields
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 | 5909 | 2003-01-02 | 2026-08-14 |
| 7-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5909 | 2003-01-02 | 2026-08-14 |
| 10-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5909 | 2003-01-02 | 2026-08-14 |
| 20-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5518 | 2004-07-27 | 2026-08-14 |
| 30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 4124 | 2010-02-22 | 2026-08-14 |