Columbus is a good city with very crappy Marathon training weather.
It feels like '88 or '95, horridly humid and hot summers, with highs between 88-90 all the time and lows in the 70s, at least since I moved here in 2014. There's even data to support temps are warming up in Central Ohio. At the risk of sounding liberal (gotta give credit where it's due), it's true about global warming, and it's screwing with training. October can't come here fast enough.
This brings up something I hear quite often this time of the year where people say, "We went from Summer to Winter and didn't have a Fall!". It's something that I also think of this when we get robbed of what could be weeks of low 70s in the afternoons with low humidity and cool overnight temperatures, which statistically starts to happen in the latter half of September.
It's not a surprise when you look at the data, either. There has been an increase of 2.8 degrees for the average temperature for Columbus in the fall months(September, October and November).
This comes out to about 11.3 more days during the fall months that are above normal. This is not only seen in the fall months but also all of the other seasons in Ohio.