July 7, 2014

When will DFW get its first 100-degree day?

The mercury is climbing this week, and the first 100-degree day may be any day.

The average date for a 100-degree day in the Dallas-Fort Worth area: June 30.

We made it past that, but the reprieve may not last long.

On Monday, Dallas/Fort Worth Airport flirted with the century mark, reaching 99 before a nearby thunderstorm knocked the mercury down. Three locations — Naval Air Station Fort Worth, Meacham and Spinks airports — also reached 99.

“If we got that close today, we could very easily do it tomorrow or any day this week,” said Dan Shoemaker, a National Weather Service meteorologist.

But for now, the forecast doesn’t include a triple-digit high until Friday.

The later-than-usual rise to triple digits isn’t a guarantee that DFW will have a cooler summer. Last year, the first one was June 27 and there were 27 after that, above the average of 18 days.

“It gives us hope that it hasn’t been God-awful so far, but it could still be 110 in August,” Shoemaker said.

But it looks like 2014 won’t be another 2011 when DFW recorded 71 triple-digit days. That year, the first 100-degree day arrived June 13. There were seven 100-degree days in June that year, and a whopping 30 in July.

In 1980, the previous record-breaking year for 100-degree days, all 31 days of July got to 100 or higher.

The three month-outlook from the Climate Prediction Center shows temperatures about normal and equal chances of having a wetter or drier than a normal summer.

While that sounds like typical Texas weather, there’s no guarantee we won’t see more heat toward the end of summer.

In both 2011 and 2012, DFW Airport recorded six 100-degree days in September.

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