On Monday, we learned from the National Oceanic and Atmospheric Administration that last September was the hottest of them all, out of 135 Septembers going back to 1880.The same was true for August 2014. And June of 2014. And May of 2014. What that means is that for each of these months, the combined average global land and ocean surface temperature has never been higher, at least since we started recording these temperatures back in the presidency of Rutherford B. Hayes.
These kinds of records are becoming so regular that they’re starting to seem a lot less impressive. They’re shrug-inducing. But to think of them in that way is a mistake. A little context shows just how dramatic the warming of the globe, on a month-by-month basis, has actually been.
You see, for 355 months now (up through September), “every month on this planet has been warmer than the 20th century average,” according to Jessica Blunden, a scientist at NOAA’s National Climatic Data Center. The Post’s own Philip Bump, then writing at Grist, pointed out numbers like these back in November 2012, when the streak was only 332 consecutive months—but since then, every month has just added to the total. And now, we’re just shy of 30 years of unbroken warmer-than-average months. The last month that actually was not warmer than the 20th century average, according to Blunden, was February of 1985. (It was merely average, she says.)
More: Climate Records Are Breaking So Often Now, We’ve Stopped Paying Attention