So How Hot Is It?

I have some friends, particularly one, who insist it's hotter in Salt Lake City than in the Northeast. I think this because we do tend to have more 100F days than NYC. We're also at 4400', so the U.V radiation is about 45% stronger than at sea level at the same latitude. But yesterday (7/2) really pointed out the difference......
Here the high was 97F with 8% relative humidity. I don't know what the actual high and humidty was in NYC - the prediction was for 98F - but with the humidity it would feel like 105F - 110F.
That's why it is more comfortable here and why I can't imagine living east of the Mississippi anymore.