Sweating already?  Just wait.  It's not a matter of "if" but "when" Austin hits 100 for the first time since last summer, and we might be in for more than two dozen such days if the forecast comes true.

Not only are metro Austin summers more than three degrees hotter than 30 years ago, the average number of 100-degree days has more than tripled since 1900 according to NOAA data.

From 1900 to 1999, the average number of triple digit days was only 11 per year.

More recently, from 2000 to 2015, Austin averaged 32 triple digit days per year.

In the past decade, that number is even higher:  from 2007 to 2017 Austin averaged as many as 38 sweltering 100+ days each year.

According to the historical averages since the late 1800s when records began, the first 100-degree day typically happens on July 10 in the Capitol City.

As seen in the above video, Chief Meteorologist Burton Fitzsimmons calls for 25 to 32 triple digit days this summer.  

Our latest forecast shows that, if the first 100 doesn't show up by Saturday, there's a better chance it'll happen next Wednesday.  Be sure to check the main weather homepage for the latest.

The earliest date we've ever seen a 100+ day?  May 4th.

The latest date of 100-degree weather?  October 2nd.

Believe it or not, there were five years where Austin-Mabry experienced no triple-digit weather.  If only this could be one of 'em!