here in south Texas, more cyclists hibernate in the summer to ride in the winter.
I rode 100-150 mi/wk all summer and am enjoying riding faster without sweating.
60-70-degree afternoons are the norm here through winter.

With most gear-intensive outdoor activities, the buying part picks up in the winter. People are busy using them in the summer, and in cold parts can only pet them in the winter. Winter becomes the season for building bikes.