Congratz on your first deadstick.

Glad it was successful
And yes, several at my field learned a similar lesson this weekend...when it's this hot, air is significantly less dense...meaning the same needle valve setting allows fewer air molecules into the fuel-air mixture. Result: Richer engine.
It need to be awfully darned warm for this to make a signifcant enough impact to require re-adjustment...but, of late, it has certainly been 'awfully darned warm' up here, and I suspect down in TX as well.