Inflation has been warming up this spring, and it’s expected to hit historical levels for the month of May. The consensus forecast for the core consumer price index, which excludes food and energy, is 3.5% on a year-over-year basis, according to Dow Jones. That’s the fastest annual pace in 28 years. Economists expect both core and headline CPI rose by 0.5% in May. Headline CPI is expected to jump 4.7% year-over-year, the highest rate since sky high energy prices spiked inflation readings in the fall of 2008. “It will be hot. It could be up to 5%,” said Diane Swonk, chief economist at Grant Thornton. “The worst of the ... (full story)