Dive summary:

• CoreLogic's national Home Price Index came in with May house prices 12.2% above the year-before level, and the company is predicting that when the data for June are compiled, prices will be 13.2% over June 2012 and 2.9% over May.
• For May of this year, CoreLogic said in its report, 48 states had price increases over the preceding 12 months, with Delaware, down 0.6%, and Alabama, down 0.1%, the only states not among the gainers – and all 50 states increased when distressed sales were excluded from the mix.
• In reporting that the national figure was 20.4% below the index's April 2006 peak when all sales were included and 14.9% below it when distressed sales were left out, CoreLogic did not offer an opinion on whether the peak of the housing boom is where the average price should land.

From the article:

"Home price appreciation, particularly in much of the western half of the U.S., is increasing at a torrid pace." ...