A decent fall ride in at 48 F (9C). Yep, I always feel like you just can't have enough lights. I have 4 flashing in the back and two bright ones up front. I ride in the morning darkness 10 months or more out of the year, so with municipal budgets not being good; they found a way to play games with the street lights. Some are on on some mornings and others are on on other mornings. Some areas are pitch black.