Some additional anecdata (and actual data) is that Chicago has the highest cyclist increase out of any city in the US as a result of better infrastructure being installed [0]

The anecedata is I see far more people biking year round in Chicago (even in the pretty brutal subzero January/February temps) than I ever can recall.

Granted it's a very flat city without much elevation changes, but there's definitely the spectrum of extreme heat in the summer and extreme cold in winter that doesn't seem to stop anybody

[0] https://chi.streetsblog.org/2024/05/28/cdot-built-it-they-ca...