You should be OK for that week in Feb. In the US spring breaks start in March and go through April depending on where you are. YOu'll also notice the price increases during that perios, so you should also save a few bucks by going in Feb.
There is no one week that is spring break. It varies by state and even buy school district. In Oregon, spring break for the public schools is always the 3rd week in March. It is a different week for the colleges.