Supported by concerns that storms in the eastern Corn Belt this week could slow fieldwork as well as flood some areas that have already been seeded, damaging recently planted crops. Most-actively traded July contract hit highest since May 4 overnight, breaking through 100-day moving average. CBOT July corn was last up 2 cents at $3.74-1/2 a bushel. The most active corn futures on the Chicago Board Of Trade rose 0.1 percent to $3.75-1/2 a bushel, having gained 0.7 percent in the previous session when prices hit a high of $3.77-1/2 a bushel.