Well I have two responses (I voted “Yes! I can get deeper ..."):
1. The outside temperature has nothing to do with my practice ...
2. Except I love the sweat and depth of pose accessible in summer - AND where I live is humid most of the year - in summer it is crazy ... 90% humidity.
So when the humidity falls below 45% I like the heat cranked up a few notches (easy to do - luckily we have our own home studio retreat) else it seems as if I’m “not working hard enough”.
Then again ... I’m not supposed to be attached to anything during my practice.
Oh well.
Robert