The dollar headed on Thursday for its biggest monthly gain in almost a year, ahead of U.S. inflation data that could support many investors' growing belief that the Federal Reserve will need to raise rates at least once this year.
The dollar hit a 13-month high against the euro on Wednesday, leaving the single European currency below $1.14. It also sent the pound to seven-month lows and kept the Japanese yen around its weakest in 40 years, around 161.9.
