You've been getting a lot more stick time than I have, that's for sure!
Like you, we prefer to go flying early in the morning or in the evening. Our morning field is on a desert-like hilltop, so the winds pick up around 0900 these days, and the heat becomes really obnoxious by 1000 (Can't put up a shelter, as it's an active full-scale airfield). Our evening field (we just joined the club) is grassy and more comfy, but it's been raining every evening since last Sunday (Morning and evening are also dictated by the Sun's position).
Sounds like you have the situation well in hand!