Yes, I only remember that happening in November 1993, when we shockingly hit it on the 15th, the latest such occurrence- and a day after the marathon! Imagine if it had happened during the marathon! Funny thing is we had a killing freeze earlier in the month, in the first few days of November, so Mid-November was a true Indian Summer!
The reason I asked is the last few years, the last 80 degree high has been pushed back to the middle of October (10-19), while the seasonal average was the latter part of September.