STOCKTON – Shim Lacy was praying for a hot day.As one of the co-founders and director for Manteca Youth Focus, she was helping out at the booth inside the Community Exhibits and Ag Mechanics building during Friday’s San Joaquin County Fair.“What’s a good, healthy way to cool off but with a nice slice of watermelon,” Lacy said.Weather conditions in Stockton got up in the near 90s on this day. For the third year, Manteca Youth Focus partnered with local growers, George Perry & Sons. But she noted that this was the first time working the fair, selling watermelon $1 per slice with Manteca Youth Focus getting 100 percent of the proceeds going towards the scholarship program.“We’ve worked the (Manteca) Crossroads Street Faire and Pumpkin Fair,” said Lacy.She added: “We will be here (at the fair) from 2 to 6 p.m., offering delicious, locally-grown watermelons.”Perry & Sons is one of the largest shippers and handlers of seedless and regular watermelons, pumpkin, and a variety of hard-shell squash.