USA’s National Oceanic and Atmospheric Administration (NOAA) providesdata here on snow cover.
Because global warming is supposed to be leading to less snow, one would think that snow cover in terms of area would be trending downwards over the past 50 or so years. However, the data tell us a very different story.
Surprisingly wintertime snow cover area has actually been trending upwards over the past 50 years and all-year snow cover in the northern hemisphere has been pretty much steady, and even of the rise over the past 25 years!.
The following NOAA chart shows us the northern hemisphere show cover for November:
Clearly the November trend is solidly upwards, with especially great area extents over 5 of the last 6 Novembers. The next chart is for December:
In December as well we see especially vast snow cover over many of the past 15 years – even higher than the winters of the 1970s, when we were being bombarded with warnings of global cooling.