My school district started sometime around August 20th-25 (other area schools give or take a week) and ran through the first week of June. One week of spring break at the end of March, two weeks winter break. (They'd send us back on Jan 2 if they could...argh.)

They didn't like closing for snow either. The joke was that if [district] was closed, you knew it was bad. We did have a few 90-minute delays--that was fun, because they used the high school as the guinea pig. A couple of times they were really late getting the word out to the local news, so there were always a few people who didn't get that message. (And at least one of those times, they decided to close!)