Year round here. But it is Alabama and a bit warmer. The lowest temp I've ridden in was 10ºF for 6 hours at night. No electric gear. It was getting a little painful after 4 hours. Last 2 hours it was really a bit warmer as the sun was rising. But I've learned that even with the same temp, the sun shining on you can feel wonderful. The last tour I took in the cold, I lost all my pics because the camera froze, then when it thawed.....well, it just shorted out.
If I lived in Yankee territory I'd prolly have the electric gear too. You guys that ride year round up there are tough.