I was wondering about this bumblebee. The bumblebee has been on the goldenrod for several days. May not be the same one but I think it is.

I found out today that it needs to be 50 degrees for bumblebees to fly without using their stored nectar https://www.tenthacrefarm.com/13-things-about-bumble-bee/

The bumblebee’s hive dies in the Fall and the queen is the only one to survive, hibernates in winter, and starts a new colony in spring https://www.almanac.com/news/gardening/gardening-advice/10-things-you-didnt-know-about-bumblebees-friendly-fuzzy-bee.