Spring Fever

Why does it seem like every class has gone haywire? Today is the first day that it has been sunny and over 70 degrees this year. Has Spring fever hit? There are classes in my school that are difficult every week, unfortunately they have not changed. It's the classes that normally come in, sit quietly, listen to directions and then work quietly that just aren't making me happy. One of the best classes in the school just left my room. This class is full of well behaved, high achieving students. For some reason they were off the wall. They were my third class of the day and the first two were no better. This has been going on for the last few weeks. Each day the students' behavior is worse than the day before. What's the answer? How do I control the constant outbursts? ONLY 44 MORE DAYS OF SCHOOL!!!