But, yes, technically, summer did not begin until today.
How do we know when it is summer?
What is the criteria for summer?
Well, this has to do with the equinoxes -- which we have previously referenced so you are probably experts on this by now.
But, just in case you are new to DITs (Daily Interesting Things) or need a refresher course, there are several sources of information about the equinoxes.
One of those sources is short, simple, and sweet in its explanation. HERE'S THE LINK
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