In addition to what others have said already, remember that easy pace isn't supposed to be an indicator of your fitness. Emphasis on the EASY, not the pace

You should use whatever pace/intervals feel easy to you, meaning your breathing is relaxed and smooth - no huffing and puffing! - you could speak in complete sentences or even sing a little, and you feel like you could keep going indefinitely.
Because easy is about effort rather than pace, lots of things will affect what your pace looks like from day to day. Weather, for sure, but also how you slept and whether you feel a little sniffly and if you might be running up or down a hill (probably not in Orlando lol). And just because your easy pace on a particular day, or even for the whole summer, might be slower, that doesn't mean you're less fit. It just means you're doing a good job recognizing what an easy effort looks like for you and sticking to it, no matter what the output (pace) says.