For me it seems that strong winds and the attendant windchill can be a showstopper. I've never had much trouble running in 0-5 degrees F so long as the winds are under 10 mph. But once wind enters the picture, it significantly reduces my endurance.
Wind's effect in cold weather reminds me of hot weather and humidity. Humidity in this context is analogous to wind in that hot weather--by itself--is typically no problem for my jogs. However, adding humidity to hot weather bogs me down, just as adding wind to cold weather. Granted, the feelings are completely different, but the bottom line is that my endurance is sapped more easily.
23:15 5k
Longest run: 14.9 mi
| Total SparkPoints: 7,445 |
 |
| |
|
8,499 |
| SparkPoints Level 9 |