On September 11, 2025, Freddie Mac reported average mortgage rates of 6.35% for a 30-year fixed-rate loan and 5.50% for a 15-year fixed-rate loan. These were national survey benchmarks—not refinance offers or guaranteed rates for individual homeowners.
What were mortgage rates on September 11, 2025?
Freddie Mac’s Primary Mortgage Market Survey (PMMS) recorded a 6.35% average for 30-year fixed-rate mortgages and a 5.50% average for 15-year fixed-rate mortgages on September 11, 2025. The Freddie Mac 2025 survey archive lists both figures.
The 30-year rate was 0.15 percentage point—15 basis points—lower than the 6.50% reported the previous week. Freddie Mac described that weekly decline as the largest in the prior year. Its September 11 release also reported year-earlier averages of 6.20% for a 30-year loan and 5.27% for a 15-year loan. Those comparisons and the weekly change are in Freddie Mac’s September 11 release.
Did mortgage rates drop that week?
Yes. The 30-year PMMS average fell from 6.50% on September 4 to 6.35% on September 11. The 15-year average fell from 5.60% to 5.50% over the same interval. Rates then continued lower in Freddie Mac’s weekly archive: 6.26% and 5.41% on September 18, followed by 6.30% and 5.49% on September 25, for 30- and 15-year fixed loans respectively.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →#1 Best Overall
- Profitability calculations; cash flow function Calculates NPV and IRR for uneven cash flows
- Time-value-of-money and Amortization keys solve problems including: pension calculations, loans, mortgages, etc.
- Ideal calculator for students, managers and statisticians
- Built-in functionality : List-based one- and two-variable statistics with four regression options: linear, logarithmic, exponential and power
- The BA II Plus calculator is approved for use on the following professional exams: Chartered Financial Analyst exam. GARP Financial Risk Manager (FRM) exam. Certified Management Accountants exam
The Federal Reserve Bank of St. Louis’ FRED 30-year mortgage-rate series also records 6.35% for September 11. FRED defines the series as a weekly average that ends on Thursday and is not seasonally adjusted.
Do these averages represent refinance offers?
No. PMMS is not a refinance-specific rate table. Freddie Mac describes its survey as covering conventional, conforming, fully amortizing home-purchase loans, based on borrowers with excellent credit and 20% down. The published averages therefore provide context about the mortgage market, not a quote available to every homeowner refinancing.
Rank #2
- PROFESSIONAL FINANCIAL CALCULATOR : Built-in TVM, IRR, NPV. Engineered for business analysts, real estate investors, accountants, and finance students.
- ADVANCED CASH FLOW & AMORTIZATION : Execute time value of money, break-even analysis, depreciation schedules, and bond pricing. Trusted for professional exam prep", MBA coursework, and banking certifications.
- CATIGA CF-300 : Flip-open hard case with a snap-close design for a secure fit. Compact and portable: designed for daily professional use in office, classroom, or on-site.
- ALL-IN-ONE FOR PROFESSIONALS : From NPV/IRR for real estate analysis to statistical calculations for business analysts. Handles probability, linear regression, and complex financial formulas.
- MORTGAGE, LOAN & INVESTMENT CALCULATOR : Covers bond pricing, loan amortization, investment analysis, and exam-level computations. Your go-to accounting calculator, business calculator, and real estate calculator in one device.
An individual lender sets a borrower’s rate using factors including credit and market rates, as Freddie Mac explains in its mortgage rates and affordability overview. A refinance quote can also differ with the loan details and lender’s terms.
How should you compare refinance rates?
Use the historical averages as a reference point, then compare actual offers for the same proposed loan. A lower advertised rate alone does not show which refinance costs less overall.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsRank #3
- HP 10BII+ FOR STUDENTS & PROFESSIONALS – This HP calculator is built for business, finance, accounting, and statistics courses. Perfect for learners and professionals who need to solve common financial problems quickly without memorizing formulas or relying on spreadsheets.
- 100+ FUNCTIONS FOR REAL WORLD MATH – Quickly solve time value of money, interest rates, loan payments, NPV, IRR, cash flows, and more. The 10bII+ also includes probability distributions for statistics courses—a feature not often found in financial calculators.
- ALGORITHMIC INPUT WITH DEDICATED KEYS – This high-school/college calculator uses algebraic and chain logic with minimal keystrokes. Layout appears the same as standard calculators for easy learning. Dedicated keys give quick access to commonly used financial and statistical functions
- APPROVED FOR MAJOR EXAMS – The HP 10bII+ algebra calculator is permitted for use on SAT, PSAT/NMSQT, and AP tests. An ideal statistics calculator and business calculator for school finance and accounting students preparing for class, coursework, or standardized exams.
- INCLUDES TRAVEL CASE, CLEANING CLOTH & BATTERIES– Slim, durable, and easy to keep on hand or store in a backpack or locker. Includes a protective case, cleaning cloth, and batteries so it’s ready out of the box. Large screen with clear contrast (non-backlit) is easy to read during exams or lectures.
- Match the loan balance and repayment term.
- Compare points and lender fees, not just the interest rate.
- Check that the offers use the same rate-lock period.
- Evaluate the payment and total borrowing cost against your current loan and how long you expect to keep the mortgage.
What does the 15-year versus 30-year rate difference mean?
The reported 15-year average was 5.50%, compared with 6.35% for a 30-year loan. A shorter term changes how quickly the balance is repaid and generally means a larger monthly principal-and-interest payment for the same balance. The rate averages alone cannot establish which term—or whether refinancing at all—would save a particular household money. That comparison requires the borrower’s balance, remaining term, closing costs, and proposed payment.
Quick Recap
Best Value
- Brand New in box; The product ships with all relevant accessories
- Dedicated keys allow easy access to common financial and statistics functions
- Easy-to-use design provides business, finance and statistical calculations fast
- Specially designed to meet the mathematical needs
Rank #4
- Solves time-value-of-money calculations such as annuities, mortgages, leases, savings, and more
- Performs cash-flow analysis for up to 32 uneven cash flows with up to 4-digit frequencies
- Calculates various financial functions: Net Future Value Net present Value Modified Internal Rate of Return Internal Rate of Return Modified Duration Payback Discounted Payback
- The Texas Instruments BAII Plus Professional features an Automatic Power Down (APD) function for extended battery life
- Prompted display guides you through financial calculations showing current variable and label. Ten-digit display
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
