My max observed range is 6 (short errand, not typical) to 108 (peak temp in a long haul >100).
I would prefer 50s and 60s to 80s and 90s.
I prefer mountain west dry 90s to east coast humid 80s.
Like Boomer, I'm hyper cautious in the ice on the road zone and will typically avoid the bike on those days.
On the warmer side of things, when it's humid 90s I might switch to car for commute (avoid drenching my work clothes in sweat when stopped in traffic) or a weekend trip with no good ride to it (just enjoy the A/C), but I'll happily sweat through the twisties and scenery if they're in play.
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