A picture is worth a thousand words.
Short term variations, local record hots and colds, don’t mean much, that’s just weather. What matters is long term global trend lines over decades, centuries, millennia, eons, epochs.
Some places are always hotter than average, some places are all cooler than average, on any particular day (I don’t use ‘normal’ because the only ‘normal’ in climate is constant change).
Average global temps
In the 1880s: 56.7 F.
1920s to 1980s: 57.2 F.
Circa 2000 to 2010: 58.1 F.
These are not ‘hot’ temps. Below 60 degrees most people start putting on sweaters and jackets. At 58 degrees F in your living room you’re probably gonna turn up the heat! It is a good temp for longer term wine storage.
Source of graph (I added the red arrow):
Thanks to Ray Kraft for these links