This winter when I finish my run before dawn and the temperature hasn’t been above freezing for days I’ll think “now I can’t wait for summer.” It turns out that I’m a fickle bitch. And that the temperature every day should be 45* F in the morning for runs and 85* F in the afternoons for cannon ball related activities.
I couldn't do it this summer. I love running on my lunch break, but it's been over 100f so many days this summer that I completely fell off. I'll start up again soon now that it should begin cooling down hopefully
I ran a few days when the heat index was around 110f. It sucks, feels like running in an oven. I'll just wait for the pitiful excuse for a fall we have here
It's really what you're used to. When it gets above 21°C here (70°F) in the UK it tends to get very humid and sticky.
Also we're not acclimatised to it. We're currently "enjoying" temps over 27°C (80°F) this week after a much cooler month. This is not typical for September. The nights have been very warm too. I've been getting home after a run the last few days and making a small puddle on the floor tiles.
Looking back, most of my personal best paces have been in the early autumn or spring.
Yeah I'm in the Midwestern edge of the Northeast. Humidity is no joke. This summer I have come to embrace shirtless running for the first time because my pride is just not worth the heat.