The term “Dog Days” was coined by the ancient Romans, who called these days caniculares dies (days of the dogs) after Sirius (the “Dog Star”), the brightest star in the heavens besides the Sun.

Popularly believed to be an evil time “when the seas boiled, wine turned sour, dogs grew mad, and all creatures became languid, causing to man burning fevers, hysterics, and phrensies” (from Brady’s Clavis Calendarium, 1813).

The Dog Days originally were the days when Sirius, the Dog Star, rose just before or at the same time as sunrise, which is no longer true owing to precession of the equinoxes. The ancients sacrificed a brown dog at the beginning of the Dog Days to appease the rage of Sirius, believing that that star was the cause of the hot, sultry weather.

Today, dog days occur during the period between July 3 and August 11. Although it is certainly the warmest period of the summer, the heat is not due to the added radiation from a far-away star, regardless of its brightness. No, the heat of summer is a direct result of the earth’s tilt.

They named this period of time, from 20 days before the conjunction to 20 days after, dog days after the dog star.

It used to be from around July 4th to mid August… but lately the termed is used weeks before and after that period.

Right now, here in the mid-west, DOG DAYS are LURKING!