The 12 Hottest May Days in Dallas History

Perhaps you’ve poked your head outside today, or heaven forbid, ventured all the way outside your door. You’ve noticed it’s hot. Like hot, hot. Like summer hot.

Thankfully, there hasn’t been too much heat dome talk thus far.

Record temperatures for Dallas in May have been predicted for today over the past few days. But it’s not the first time we’ve sweltered with triple digits before summer officially begins. 2005 and 1985 in particular saw May temps set records and start the sweaty season off earlier than most Dallasites would prefer. In 1985, the highest daily low temp was 82 degrees, for cryin’ out loud.

Here are the 12 warmest May dates in Dallas history:

Hottest Dallas temperatures on record in May

98 degrees:
May 4, 1947; May 11, 1967; May 26, 2024

99 degrees:
May 9, 1952; May 5, 1984; May 27, 1996; May 6, 1998; May 21, 2005; May 22, 2005

102 degrees:
May 30, 1985

103 degrees:
May 28, 1927; May 31, 1985

Dallas weather forecast, high-temperature outlook

“But it’s only May,” you scream while shaking one fist at the sky, while reflexes honed over the years take over your other hand to wipe the sweat from your brow.

Indeed, it’s “only May,” but that’s never been too soon for it to feel like June here in Dallas. As of 11 a.m. Wednesday, WFAA’s weather guru Pete Delkus was busy letting us all know that perhaps today is the hottest day of the week, with an expected high of 100 degrees, according to the forecast he posted to X. Thankfully, he offered a bit of hope to those of us not quite ready to sweat to the oldies.

Today is the hottest on the 14-day.

Added cloud cover and rain chances help trim a few degrees late week and weekend. #wfaaweather pic.twitter.com/eAkZzyjyAP

— Pete Delkus (@wfaaweather) May 14, 2025

Today is the hottest on the 14-day,” Delkus wrote. “Added cloud cover and rain chances help trim a few degrees late week and weekend.”

So, it’s still going to be hot this week, but maybe not quite as hot. Got it?