Every Single Day of 2023 Was Extraordinarily Hot
Here are some more numbers from today’s big temperature announcement.
There was another figure in that announcement, however, that caught my eye: 2023 was also the first year in which every single day was at least 1 degree Celsius hotter than the pre-industrial average.
That is a marked contrast to 2022, our sixth hottest year on record, which had several days less than 1 degree above the pre-industrial average and a maximum temperature difference around half a degree lower than last year’s.
Just for kicks, I decided to make the same chart for 1940, the earliest year represented in this particular dataset. As you will perhaps notice, I had to adjust the scale to account for temperatures
below the pre-industrial average.
The last time the global daily average temperature came in below the pre-industrial average, according to the Copernicus data, was October 8, 1992.