Students on the traditional schedule in Davis County are going to get a longer than usual summer vacation this year.

School won't start until after the Labor Day weekend.The School Board has approved a new school calendar policy that sets Tuesday, Sept. 3, as the first day of class in the 1991-92 school year. Though students will get a longer summer this year, they won't get out of school next year until June 10.

Under the policy, which is similar to that of Jordan and Granite school districts, school will start before Labor Day if the holiday falls on Sept. 5 or later, and after Labor Day if the holiday falls on Sept. 4 or earlier, explained Davis School District administrator Garvin Carlisle.

The change was approved largely because of meteorological data that showed temperatures are cooler - by as much as seven degrees - in late spring than in late August, when school used to start.

Last fall, many parents and teachers complained about extreme temperatures at Muir Elementary School in Bountiful and at other schools.

Voting against the change in schedules was board member Robert Thurgood, a businessman who believes teenagers from outside the Davis district may steal full-time summer jobs away from county youth.