Weather Facts: Dog days of summer

Weather Facts: Dog days of summer

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Many have heard the term "the dog days of summer." Rebecca White of Austin is wondering what does the saying mean and where does it come from.

The time between July 15 and August 15th is known as the dog days of summer. This is when the weather doesn't change much and it's the hottest and driest part of the year.

Mid-summer is called the dog days because the brightest star in Canis Major is Sirius also known as the Big Dog Star.

It's so bright in fact that the Ancient Romans thought the star's light combined with the sun's energy gave us especially hot days.

But as many know the summer heat is not due to the added energy from a far away star. It's hot this time of year because the northern hemisphere is tilted toward the sun receiving more direct sunlight.

Plus a huge dome of high pressure sets up shop over the state deflecting the rain and trapping in the heat.

Get ready for a typical August with the outlook showing the temperatures and rainfall remaining near average.

Email weather questions to weather@fox7.com.

 

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