I did the same thing and acquired some late blooming daylilies.
Last Spring I saw a couple of early bloomers last more than a day and I know it was the cool weather I had at that time. That happens with other blooming plants too. My brugmansia blooms will also last longer and the blooms look so much better!
Well, heck .... I actually enjoy being out in the yard when the temps are cooler, too! I look and feel better and can handle yard work for longer periods of time!
What lies behind us and what lies before us are tiny matters, compared to what lies within us. Garden Rooms and Becky's Budget Garden