@dthompson I'm lucky to have a house that can weather 95F for weeks and stay under 82 with no air con. Also the floors are more like 70. Thermal mass rules.
(Humidity is another matter, I've been putting ceiling fans in every room to make it more pleasant.)
@joeyh wow how do you manage that? by the end of the day my house is 86-88F. we get decent shade from some large trees but things still heat up eventually.
@dthompson also baseline temp is 55F in winter (down to 0F or so); never freezes inside
@joeyh its only these more extreme summer temps that get to me. as I write this my bedroom is reaching a comfortable sleeping temperature. the house stays pretty comfortable when highs are below 90. my basement is not very finishable (house built in 1800) and I don't want to sacrifice the workshop space and easy access to plumbing/wires.