We just had our pool installed in March. We went swimming for the first time on Easter Sunday (water temp was 78 w/ solar cover). Then we also swam the next day then it got cool again. We swam weekend before last (water temp was 80/82). Looks like we might get a chance to swim again this weekend.

Since it's a new pool I've not had to officially "open" (remove cover, etc.), but I'd assume next year I'll be opening around mid March.