Does running in winter have any benefits?
Contrary to what you might expect, winter weather beats summer weather, instead of slowing down to increase heat resistance, winter makes everything easier:
it helps you to sweat less and therefore stay more hydrated;
you feel stronger and more energetic;
your heart will beat slower and therefore the probability of "gaining" a few km is higher;
Running in winter involves mental toughness for sure. But you will emerge stronger and ready to deal with the tough spots in a spring run. In addition, and as seen in the previous points, it brings physical benefits!