The dog days of summer are generally considered to be July into August. The expression actually dates back to the ancient Romans. Having conquered virtually every living organism in the known world, the bored Romans began looking to the skies to see if there was anything that might be close enough for them to pillage. At a July meeting of the Drenched Toga Science Society, one of the young members, Newbius Curious, mentioned that he had noticed that, when the weather was hottest, the brightest visible star appeared in the same area of the sky as the sun. “Old news”, snickered a veteran member, Snobus Maximus. “The star you refer to is part of the Canis Major constellation. That’s “Big Dog” for those members who prefer English subtitles. Anyway, its brightness this time of year adds to this ridiculous heat. It is called the Dog Star – Sirius.” “Seriously?”, replied Newbius, at which point he was given a wedgie, and then banished for unauthorized punning.
And even though Snobus got the meteorology wrong, the expression “dog days of summer” has lived on.