These rates are the daily secondary market quotation on the most recently auctioned Treasury Bills for each maturity tranche (4-week, 13-week, 26-week, and 52-week) that Treasury currently issues new Bills. Market quotations are obtained at approximately 3:30 PM each business day by the Federal Reserve Bank of New York. The Bank Discount rate is the rate at which a Bill is quoted in the secondary market and is based on the par value, amount of the discount and a 360-day year. The Coupon Equivalent, also called the Bond Equivalent, or the Investment Yield, is the bill's yield based on the purchase price, discount, and a 365- or 366-day year. The Coupon Equivalent can be used to compare the yield on a discount bill to the yield on a nominal coupon bond that pays semiannual interest.

The yield on US 30 Year Bond Yield eased to 4.95% on September 2, 2025, marking a 0.01 percentage point decrease from the previous session. Over the past month, the yield has edged up by 0.16 points and is 0.83 points higher than a year ago, according to over-the-counter interbank yield quotes for this government bond maturity. United States 30 Year Bond Yield - values, historical data, forecasts and news - updated on September of 2025.

The Average Interest Rates on U.S. Treasury Securities dataset provides average interest rates on U.S. Treasury securities on a monthly basis. Its primary purpose is to show the average interest rate on a variety of marketable and non-marketable Treasury securities. Marketable securities consist of Treasury Bills, Notes, Bonds, Treasury Inflation-Protected Securities (TIPS), Floating Rate Notes (FRNs), and Federal Financing Bank (FFB) securities. Non-marketable securities consist of Domestic Series, Foreign Series, State and Local Government Series (SLGS), U.S. Savings Securities, and Government Account Series (GAS) securities. Marketable securities are negotiable and transferable and may be sold on the secondary market. Non-marketable securities are not negotiable or transferrable and are not sold on the secondary market. This is a useful dataset for investors and bond holders to compare how interest rates on Treasury securities have changed over time.

The yield on US 10 Year Note Bond Yield rose to 4.23% on August 29, 2025, marking a 0.02 percentage point increase from the previous session. Over the past month, the yield has fallen by 0.15 points, though it remains 0.33 points higher than a year ago, according to over-the-counter interbank yield quotes for this government bond maturity. US 10 Year Treasury Bond Note Yield - values, historical data, forecasts and news - updated on September of 2025.

Graph and download economic data for Market Yield on U.S. Treasury Securities at 2-Year Constant Maturity, Quoted on an Investment Basis (DGS2) from 1976-06-01 to 2025-08-28 about 2-year, maturity, Treasury, interest rate, interest, rate, and USA.

This dataset shows the average interest rates for U.S. Treasury securities for the most recent month compared with the same month of the previous year. The data is broken down by the various marketable and non-marketable securities. The summary page for the data provides links for monthly reports from 2001 through the current year. Average Interest Rates are calculated on the total unmatured interest-bearing debt. The average interest rates for total marketable, total non-marketable and total interest-bearing debt do not include the U.S. Treasury Inflation-Protected Securities.

Graph and download economic data for Market Yield on U.S. Treasury Securities at 30-Year Constant Maturity, Quoted on an Investment Basis (DGS30) from 1977-02-15 to 2025-08-28 about 30-year, maturity, Treasury, interest rate, interest, rate, and USA.

The yield on US 2 Year Note Bond Yield eased to 3.63% on August 29, 2025, marking a 0.01 percentage point decrease from the previous session. Over the past month, the yield has fallen by 0.33 points and is 0.30 points lower than a year ago, according to over-the-counter interbank yield quotes for this government bond maturity. US 2 Year Treasury Bond Note Yield - values, historical data, forecasts and news - updated on August of 2025.

The yield on US 3 Year Note Bond Yield eased to 3.60% on September 2, 2025, marking a 0 percentage point decrease from the previous session. Over the past month, the yield has fallen by 0.05 points and is 0.13 points lower than a year ago, according to over-the-counter interbank yield quotes for this government bond maturity. United States 3 Year Note Yield - values, historical data, forecasts and news - updated on September of 2025.

Graph and download economic data for Market Yield on U.S. Treasury Securities at 3-Month Constant Maturity, Quoted on an Investment Basis (DGS3MO) from 1981-09-01 to 2025-08-28 about bills, 3-month, maturity, Treasury, interest rate, interest, rate, and USA.

The Treasury Reporting Rates of Exchange dataset provides the U.S. government's authoritative exchange rates to ensure consistency for foreign currency units and U.S. dollar equivalents across all reporting done by agencies of the government. This report covers any foreign currencies in which the U.S. government has an interest, including: receipts and disbursements, accrued revenues and expenditures, authorizations, obligations, receivables and payables, refunds, and similar reverse transaction items. The Secretary of the Treasury has the sole authority to establish the exchange rates for all foreign currencies or credits reported by government agencies under federal law.

The yield on US 20 Year Bond Yield eased to 4.90% on September 2, 2025, marking a 0.01 percentage point decrease from the previous session. Over the past month, the yield has edged up by 0.11 points and is 0.69 points higher than a year ago, according to over-the-counter interbank yield quotes for this government bond maturity. This dataset includes a chart with historical data for US 20Y.

Graph and download economic data for Interest Rates: Long-Term Government Bond Yields: 10-Year: Main (Including Benchmark) for United States (IRLTLT01USM156N) from Apr 1953 to Jun 2025 about long-term, 10-year, bonds, yield, government, interest rate, interest, rate, and USA.

The Treasury Loans to Government Agencies table represents the specific maturities for the Treasury Loans to Government Agencies rate changes from the previous month to the current month for a set maturity time frame.

View values of the average interest rate at which Treasury bills with a 3-month maturity are sold on the secondary market.

The yield on US 8 Week Bill Bond Yield rose to 4.24% on August 28, 2025, marking a 0.01 percentage point increase from the previous session. Over the past month, the yield has fallen by 0.11 points and is 1 points lower than a year ago, according to over-the-counter interbank yield quotes for this government bond maturity. This dataset includes a chart with historical data for the United States 8 Week Bill Yield.

1 Year Treasury Yield - Historical chart and current data through 2025.

The yield on US 3 Month Bill Bond Yield eased to 4.15% on September 1, 2025, marking a 0 percentage point decrease from the previous session. Over the past month, the yield has fallen by 0.20 points and is 0.95 points lower than a year ago, according to over-the-counter interbank yield quotes for this government bond maturity. United States 3 Month Bill Yield - values, historical data, forecasts and news - updated on September of 2025.

This dataset was generated by parsing PDFs released by the US Treasury for foreign exchange. An edited version (quarterly-edited.csv) includes fixes for typos in the Treasury data.

Usage caveats from the documentation:

"Exceptions to using the reporting rates as shown in the report are: * collections and refunds to be valued at specified rates set by international agreements, * conversions of one foreign currency into another, * foreign currencies sold for dollars, and * other types of transactions affecting dollar appropriations. (See Volume I Treasury Financial Manual 2-3200 for further details.)

Since the exchange rates in this report are not current rates of exchange, they should not be used to value transactions affecting dollar appropriations."

Additional caveats:

This unified dataset should be used only for reference or ballpark estimation, and not for anything like automated valuation. The reason is because there's still a lot of messiness involving countries and changing units- when in doubt or if required, please do additional research to confirm the historical rates are indeed as stated.

Future plans:

• Clean this up so that it can indeed be used in an automated system for converting currencies
• Fill in the missing entries
• Standardize country names and currency names

Documentation

Source

30 Year Treasury Yield - Historical chart and current data through 2025.