Why Round Rock's Weather Changes Trigger Migraines (and What Helps).

If you get migraines and you live in Texas, you've probably noticed that certain weather days are reliably bad. The front coming through. The pressure drop before a thunderstorm. The blue-sky winter days that follow a sudden cold snap. You might have written it off as coincidence or superstition. It isn't.

The Barometric Pressure Research

The link between barometric pressure and migraine is one of the better-documented environmental trigger relationships in headache medicine.

A Japanese study published in Internal Medicine followed migraineurs and tracked their attacks against daily barometric pressure data. It found that falling atmospheric pressure, specifically a drop of 5 hPa or more, was significantly associated with migraine onset, with the highest risk in the day or two following the pressure drop.¹ The effect was dose-dependent: larger drops meant higher risk.

A narrative review in Current Pain and Headache Reports compiled the existing evidence on headache and barometric pressure, concluding that the association is real but that individual susceptibility varies considerably. Some migraineurs are highly weather-sensitive, others are not.²

More recently, a 2024 review in the same journal noted that weather sensitivity in migraine is likely mediated through sensitization of the trigeminal pain system, the same system involved in all migraine, and that reducing overall migraine frequency and nervous system sensitization can blunt weather-triggered attacks over time.³

Why Texas Makes This Worse

Most regions of the U.S. have seasonal weather variation. Central Texas has weather variation on a daily or even hourly basis. The Hill Country to the west creates terrain-driven pressure and temperature swings that are more pronounced than much of the country. Blue northers can drop temperatures 40 degrees in an afternoon. Spring and fall fronts pass through multiple times a month.

For a migraineur with high weather sensitivity, living in this climate means the external trigger load is permanently high. The practical implication: reducing what you can control (your baseline nervous system sensitivity, your cervical spine function, your sleep consistency) matters more here than in a more stable climate.

What You Can Control: Baseline Migraine Threshold

You can't control the barometric pressure. You can't move (or maybe you don't want to). What you can do is lower your overall migraine threshold so that triggers that would previously put you over the edge no longer do.

Every migraineur has what's sometimes called a "threshold," meaning a cumulative level of inputs (poor sleep, stress, hormonal fluctuation, skipped meals, weather) that determines whether a given trigger produces an attack. The lower your baseline, the more inputs it takes to cross the threshold.

Chiropractic care enters the picture through two mechanisms:

• Reducing cervicogenic contribution. Many people who self-report as "migraineurs" have a significant cervicogenic component, meaning upper cervical joint dysfunction is contributing to or lowering their headache threshold. Addressing this through chiropractic adjustment and cervical care can reduce the overall headache burden.
• Nervous system regulation. There is growing evidence that spinal manipulation has measurable effects on autonomic nervous system function and pain sensitivity, potentially raising the threshold at which sensory input triggers a migraine response.

What to Tell Your Doctor

If you're tracking weather-associated migraines, tell your neurologist or primary care physician. Weather sensitivity is a legitimate clinical data point that can influence both diagnosis (distinguishing migraine from cervicogenic headache) and preventive medication decisions.

And if you haven't had your cervical spine evaluated as a contributing factor, that's worth doing. You can start with a free consultation at our Round Rock clinic. Our headache and migraine relief page explains how we assess and approach migraine and headache patients.

References

1. Kimoto K, Aiba S, Takashima R, et al. Influence of barometric pressure in patients with migraine headache. Internal Medicine. 2011;50(18):1923–1928. PMID: 21921370. DOI: 10.2169/internalmedicine.50.5640.
2. Maini K, Schuster NM. Headache and barometric pressure: a narrative review. Current Pain and Headache Reports. 2019;23(11):87. PMID: 31707623. DOI: 10.1007/s11916-019-0826-5.
3. Denney DE, Lee J, Joshi S. Whether weather matters with migraine. Current Pain and Headache Reports. 2024;28(4):181–187. PMID: 38358443. DOI: 10.1007/s11916-024-01216-8.