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1-month Treasury par yield

On , Treasury's 1-month par yield was 4.05%, 1 basis point higher than the day before and 19 basis points lower than a year earlier.

1-month par yield

4.05%

+1 bp since the day before

5 October 2026 · Daily par yield curve

52-week high

4.20%

16 October 2025

52-week low

3.65%

23 June 2026

Change in a year

−19 bp

Ours, from Treasury's curve

What has the 1-month Treasury yield been over time?

Whole curve today

1-month par yield, last business day of each month

%

1-month par yield, last business day of each month0.0%2.0%4.0%6.0%31 Jul 200128 Feb 201430 Sep 20261-month par yield, last business day of each month0.0%2.0%4.0%6.0%31 Jul 200128 Feb 201430 Sep 2026

Source: U.S. Treasury, daily par yield curve rates, Daily Treasury Par Yield Curve Rates. Observed .

The numbers behind this chart
1-month par yield at each month-end, newest first (%)
Month-endPar yield
4.02%
3.85%
3.78%
3.70%
3.72%
3.72%
3.74%
3.74%
3.72%
3.74%
4.05%
4.06%
4.20%
4.41%
4.49%
4.28%
4.33%
4.35%
4.38%
4.38%
4.37%
4.40%
4.76%
4.76%
Show 279 more rows
Month-endPar yield
4.93%
5.41%
5.49%
5.47%
5.48%
5.48%
5.49%
5.53%
5.53%
5.60%
5.56%
5.56%
5.55%
5.52%
5.48%
5.24%
5.28%
4.35%
4.74%
4.65%
4.58%
4.12%
4.07%
3.73%
2.79%
2.40%
2.22%
1.28%
0.73%
0.37%
0.17%
0.06%
0.03%
0.06%
0.11%
0.06%
0.07%
0.03%
0.05%
0.05%
0.01%
0.01%
0.01%
0.04%
0.07%
0.08%
0.08%
0.08%
0.08%
0.08%
0.09%
0.13%
0.13%
0.10%
0.05%
1.45%
1.56%
1.48%
1.62%
1.59%
1.91%
2.10%
2.01%
2.18%
2.35%
2.43%
2.43%
2.44%
2.42%
2.44%
2.31%
2.20%
2.12%
1.95%
1.94%
1.77%
1.76%
1.65%
1.63%
1.50%
1.43%
1.28%
1.14%
0.99%
0.96%
0.95%
1.00%
0.84%
0.86%
0.68%
0.74%
0.40%
0.50%
0.44%
0.38%
0.20%
0.20%
0.26%
0.19%
0.20%
0.27%
0.16%
0.18%
0.23%
0.22%
0.14%
0.11%
0.01%
0%
0%
0.04%
0.02%
0.01%
0%
0.05%
0.02%
0.01%
0.03%
0.04%
0.01%
0.02%
0.02%
0.01%
0.02%
0.05%
0.02%
0.03%
0.04%
0.03%
0.01%
0.05%
0.03%
0.03%
0.02%
0.03%
0.02%
0.03%
0.03%
0.04%
0.07%
0.04%
0.02%
0.11%
0.09%
0.06%
0.09%
0.07%
0.04%
0.03%
0.07%
0.05%
0.08%
0.04%
0.01%
0.02%
0.02%
0.02%
0.01%
0.16%
0.01%
0.04%
0.02%
0.05%
0.13%
0.15%
0.07%
0.18%
0.14%
0.14%
0.16%
0.14%
0.17%
0.15%
0.14%
0.15%
0.09%
0.02%
0.04%
0.08%
0.01%
0.06%
0.11%
0.14%
0.17%
0.14%
0.04%
0.17%
0.16%
0.15%
0.11%
0.02%
0.12%
1.02%
1.63%
1.55%
1.60%
1.98%
1.17%
1.22%
2.07%
1.64%
2.76%
3.63%
4.01%
3.43%
4.02%
5.13%
4.28%
4.78%
4.80%
5.07%
5.24%
5.00%
4.75%
5.22%
5.18%
4.60%
5.12%
5.02%
4.54%
4.75%
4.60%
4.65%
4.47%
4.37%
4.01%
4.00%
3.77%
3.15%
3.41%
3.25%
2.99%
2.80%
2.70%
2.63%
2.51%
2.06%
1.89%
2.07%
1.73%
1.47%
1.45%
1.27%
1.17%
0.94%
0.83%
0.96%
0.95%
0.85%
0.90%
0.96%
0.96%
0.87%
0.98%
0.91%
0.81%
1.16%
1.13%
1.16%
1.21%
1.17%
1.20%
1.25%
1.48%
1.60%
1.70%
1.73%
1.69%
1.72%
1.77%
1.76%
1.76%
1.69%
1.68%
1.87%
2.15%
2.28%
3.40%
3.67%

The last 30 business days

1-month par yield each business day, newest first (%)
DatePar yield
4.05%
4.04%
4.06%
4.02%
4.04%
4.04%
4.04%
4.01%
3.99%
3.97%
Show 20 more rows
DatePar yield
3.96%
3.97%
3.97%
3.96%
3.93%
3.94%
3.93%
3.91%
3.81%
3.81%
3.79%
3.83%
3.83%
3.85%
3.85%
3.84%
3.81%
3.80%
3.79%
3.79%

How this is measured

The 1-month par yield is the coupon rate at which a new 1-month Treasury security would sell at par, from the curve Treasury fits each business day to closing bid prices. Month-ends are the last business day of each finished month Treasury published a value for this term; the running month shows in the last 30 days. The 52-week range and the changes in basis points are computed by 500metrics.

What this number cannot tell you
  • A fitted curve value, not the yield of one security: an outstanding note or bond of about this term trades at its own yield.
  • Month-end values hide moves inside the month; the last 30 days are shown day by day.
Sources and licence

Sources and licence

  • U.S. Treasury, daily par yield curve rates (source). Licence: Public domain, a work of the US federal government

Our text and compilation: CC BY 4.0. How to reuse and cite this page.