We've only had six days where the temperature stayed below freezing since November 1st, and the third year in a row where we've not had a temperature below -18°C by this point. This shouldn't surprise anyone who knows that 2020 either tied or set the record for warmest year in history:
[An] analysis of global temperatures, by the NASA Goddard Institute for Space Studies and released Thursday, found that 2020 was slightly warmer than 2016. But the difference was insignificant, the institute’s director, Gavin Schmidt, said in an interview.
“Effectively it’s a statistical tie,” he said.
Other analyses issued Thursday, one by the National Oceanic and Atmospheric Administration and another by Berkeley Earth, an independent research group in California, found that 2020 was slightly cooler than 2016, as did one published last week by the Copernicus Climate Change Service in Europe. But the difference was small enough to not be statistically significant.
With the 2020 results, the last seven years have been the warmest since the beginning of modern record-keeping nearly a century and a half ago, Dr. Schmidt said.
But the numbers are only a small part of the story. As climate scientists have predicted, the world is seeing an increase in heat waves, storms and other extreme weather as the planet warms, and in disasters like droughts, floods and wildfires that result. Last year offered no respite, with record fires in Australia and California, and severe drought in central South America and the American Southwest.
Some climate forecasters had thought that the arrival of cooler sea-surface temperatures in the Pacific Ocean — part of the recurring global climate phenomenon called La Niña — would tamp down temperatures this year. It is difficult to quantify the influence of La Niña, but it is clear that any effect was eclipsed by the emissions-related rise in temperatures.
As I've said for a very long time, global warming will make Chicago a much more comfortable place to live for a century or two at least, though changing precipitation patterns could seriously alter the Great Lakes' shorelines in ways that make us much less comfortable later on.