'Summer' in the Bible

Now David passed a little from beyond the summit, and suddenly Ziba the servant of Mephibosheth [was] there to meet him [with] a pair of saddled donkeys; on them [were] two hundred loaves of bread and a hundred raisin cakes, [with] a hundred summer fruits and a skin of wine.

The king said to Ziba, "{What do you want to accomplish by bringing these}?" And Ziba said, "The donkeys [are] for the king's household to ride [on]; the bread and the summer fruit [are] for the young men to eat, and the wine [is] for the faint in the wilderness to drink.