In brief: 45F (7.2C) and so beautiful. Clear and crisp fall morning, no wind. Just lovely out! I felt good through 8-9km, and then my legs got heavy and a bit tired for the last 3-4km. I screwed up my watch at 10km and had it on while I stopped for water, so the watch time is not right. But I was at 1:03:03 at 10km and did about 6:30/km on the last 2km slight uphill, so approximate time was 1:16 for the 12km, which is 6:20/km, and my ave HR was about 145, which is great! I'm happy with this!
The dog enjoyed her walk, too :) - here's a photo with some fall color for you.
Garmin data here.