I'm dubious. If you pick the right threshold, you will surely find that the frequency of days above that threshold is massively increased. But that doesn't im

I'm dubious. If you pick the right threshold, you will surely find that the frequency of days above that threshold is massively increased. But that doesn't imply that the temperature is up 20F. I certainly remember plenty of days in the mid-to-high-nineties in Silicon Valley 20 years ago.