You saw a headline: the 30 year fixed averaged 6.67 percent. Then you called a lender and got a different number. Nothing went wrong. The headline and your quote are two different things, measuring two different things, on two different days.

This post explains what the Freddie Mac Primary Mortgage Market Survey actually measures, which parts of your loan it never sees, how to translate a rate into a monthly payment in south Monroe County, and how a rate lock works so the number you were quoted is the number that shows up at closing. No hype. Just the mechanics.

First, a note on the numbers in this post

I take source discipline seriously, so I will be plain with you. The 6.67 percent reading came to me as a reported PMMS figure for the week of August 13, 2026, with roughly 6.58 percent reported about a year earlier: a difference of about 9 basis points, which is close to flat. I was not able to independently verify either reading before publishing. Treat them as illustrative only, and pull the current week's number straight from Freddie Mac's own PMMS page before you use it in any calculation. Every other statement here is about how the survey and the loan process work, not about where rates sit today.

Freddie Mac PMMS explained

The Primary Mortgage Market Survey is a weekly survey. Freddie Mac collects rate and point information from lenders across the country, then publishes an average. It is released once a week, and the figure you read on Friday describes loan pricing gathered earlier that week.

Three things follow from that, and they matter more than most buyers realize.

• It is national. There is no separate line for the 30 year fixed rate Rochester NY buyers are quoted. Lender competition, servicing costs and state level pricing all vary, and the national average smooths over all of it.
• It is an average. Half the observations sit above it. A published average is a description of a distribution, not a price you can claim.
• It is a snapshot in the past. Mortgage pricing can move within a single business day. By the time a weekly average is published, lenders may already be quoting something different.

Freddie Mac publishes its own methodology description alongside the survey. Read it once. It tells you the type of loan and the borrower profile the survey is built around, and it tells you the average points figure that accompanies the average rate. That second part gets dropped from almost every headline, and dropping it makes the rate look cheaper than it is, because points are money paid up front to buy the rate down.

Why my rate quote is different

A survey average is built on a standardized loan. Your loan is not standardized. Your quote reflects your file, the property, and the moment the lender priced it. Here is what sits between the two.

Add lock length to that list. A 60 day lock generally prices higher than a 30 day lock, because the lender is carrying the risk longer. So two honest quotes on the same day, for the same borrower, can differ simply because one assumed a shorter lock.

Build the budget from the payment, not the rate

Rate is one input. What you actually have to fund every month is principal and interest plus everything escrowed alongside it. In south and southeast Monroe County, the non interest portion of the payment is not a rounding error.

• Property taxes. New York property tax bills are a real part of the monthly number, and they vary meaningfully between towns and school districts. A house in Henrietta, one in Pittsford and one in Brighton can carry noticeably different tax bills at the same purchase price. Ask for the actual current tax figures on any specific address before you model the payment, and remember that an assessment can change after a sale.
• Homeowners insurance. Priced on the individual property. Older housing stock, roof age, and the type of electrical service all show up in the premium.
• Mortgage insurance. Applies on many lower down payment loans, and the structure differs between conventional and FHA financing. Ask how long it stays on the loan, not just what it costs.
• HOA or condo fees. Common in some Henrietta and Brighton developments. Underwriting counts them against you.

Two houses at the same price and the same rate can carry monthly payments that are not close, once taxes, insurance and any association fee are stacked on. When I walk a house with a buyer, this is the part we run before we talk about offer strategy, because it decides what you are comfortable closing on.

Rate lock basics

A lock is a lender commitment to honor a specific rate and point combination for a set number of days, provided your file closes in that window and does not materially change. What to understand before you sign one:

• The clock starts when the lock starts, not when you find the house. Locks are usually tied to a property address and a signed purchase contract.
• Match the lock length to the real timeline. Count from contract to your scheduled closing, then add cushion for appraisal scheduling, title work and any repair negotiation. Running out of lock is an avoidable, expensive mistake.
• Extensions cost money. Ask the price of a seven, fifteen and thirty day extension in writing, up front, before you need one.
• Ask about float down terms. Some lenders offer a one time option to capture a lower rate if the market improves after you lock. Some do not. Get the conditions in writing.
• Changes can reprice your loan. A different down payment, a switched loan program, a credit event, or an appraisal that lands under contract price can all change pricing even inside a lock.

How to compare quotes without guessing

Gather quotes from more than one lender on the same day, for the same loan amount, the same down payment and the same lock length. Then compare the Loan Estimate, which is a standardized form, page by page. Look at the rate, the points, the lender fees, and the cash you need at closing, as a set. A lower rate purchased with higher up front points is not automatically the better deal, and it may be the worse one if you sell or refinance in a few years.

One more habit worth building: ask each lender what would change your quote. A straight answer tells you a lot about who you are working with.

If you are early in this and want to know what a realistic payment looks like on actual addresses in Henrietta, West Henrietta, Pittsford, Brighton, Mendon, Rush or Honeoye Falls, I am glad to sit down and go through the numbers with you before you start touring. I will tell you what I know, and I will tell you what I would need to look up. Book a time with me here, and bring your questions in writing if that helps.

Khem Kadariya

About this data

The figures in this post were compiled from publicly available sources including Houzeo, Zillow, RochesterFirst, Movoto and Redfin, along with other public market data. Real estate numbers change quickly, and these were accurate as of August 2026. For current figures on a specific home, street, or town, ask me directly rather than relying on a published average.