It took this long for one of us a-holes from California to stomp in here and yell, "What the hell are seasons?" The weather changes a little bit, and the days just get longer or shorter, but that's about it. We generally get our final week of triple-digit temps just before Halloween. It hasn't rained in 5 months, and way back in 2015 we had a grand total of ONE day where the temperature dropped below 32º. I rode all of last winter in regular unlined bibs and a long-sleeve jersey.
How I address the "seasons:" June-August, ride at 6am. December-February, ride at 10am. All other months, ride whenever.
__________________