Still, some buyers may be racing to close deals before rates rise further. The average rate on the 30-year fixed mortgage has risen more than a full percentage point since May.
New-homes sales were 12.6 percent higher in August than a year ago, although the pace remains well below the 700,000 consistent with a healthy market.
The number of new homes available for sale rose 3.6 percent from July to 175,000. That's still relatively lean — at the August sales' pace it would take five months to exhaust the supply.
The median price of a new home sold in August fell 0.7 percent from July to $254,600.
Sales rose in all but one region of the country in August, increasing 19.6 percent in the Midwest, 15.3 percent in the South and 8.8 percent in the Northeast. Sales plunged 14.6 percent in the West, the second straight month of double-digit declines.
The housing market has been one of the strongest performers this year in an otherwise sluggish economy, helped by steady job gains, low mortgage rates and a limited supply of available homes for sale.
Sales of previously occupied homes rose in August to a seasonally adjusted 5.5 million annual pace, the National Association of Realtors reported last week. That's a healthy level and the highest in more than six years.
The realtors' group cautioned that the August pace could represent a temporary peak. The gain reflected closings and largely occurred because many buyers rushed to lock in mortgage rates in June and July before they increased further. The Realtors said buyer traffic dropped off noticeably in August, likely reflecting the higher rates.
Many economists say the housing recovery should withstand the recent rate increase. Mortgage rates are still quite low by historical standards. The average rate on a 30-year fixed mortgage was 4.5 percent last week.
Though new homes represent only a fraction of the housing market, they have an outsize impact on the economy. Each home built creates an average of three jobs for a year and generates about $90,000 in tax revenue, according to National Association of Home Builders.