Today's barometric pressure in Dallas, a 48-hour pressure chart, and a risk score for weather-triggered migraine and headache, based on pressure drops, humidity, and temperature changes.
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Dallas-Fort Worth is located in Tornado Alley, where warm Gulf air meets cold northern fronts. These collisions create sudden, steep pressure drops that make the metroplex one of the toughest areas for weather-triggered migraines.
Worst season for migraines: November through March. Dallas sits in the heart of the severe weather corridor, known for spring supercells and tornadoes. Its pressure drops are most frequent earlier, from November through March, when winter fronts push through and 55% of days in January see a 5 hPa drop. Summer is far calmer, at 8% of days or fewer.
Common triggers in Dallas: severe thunderstorm pressure drops, dry line frontal passages, extreme summer heat above 105 degrees. The DFW metroplex is one of the most barometrically active major metro areas in the country. The convergence of Gulf moisture, Pacific air, and Canadian cold fronts creates a three-way battle that produces frequent and sometimes extreme pressure changes throughout the warm season.
Typical pressure: Dallas averages 1000 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 987 hPa. Swings of 4-12 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Dallas ranks #57 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Dallas weather trigger migraines?
Yes. Dallas experiences 4-12 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include severe thunderstorm pressure drops, dry line frontal passages, extreme summer heat above 105 degrees.
What time of year are migraines worst in Dallas?
In Dallas the most barometrically volatile stretch of the year falls in November through March. That is when weather is most likely to play a part, if weather is a trigger for you at all. See when migraine weather season starts across the U.S.
Is there a barometric pressure headache forecast for Dallas?
This page works as one. Many people call a headache that arrives with a weather change a barometric pressure headache, and this forecast tracks the pressure drops, humidity and temperature swings behind that idea. The score covers the next 24 hours in Dallas and the chart shows the next 48. It is built on migraine research, so treat it as a rough guide for other headaches. A sudden, severe headache needs urgent medical care, whatever the weather.
Your own forecast
This page shows the weather risk for everyone in Dallas. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Dallas's swings really line up with your attacks, and alerts you when conditions match your own trigger history.