Today's barometric pressure in Bakersfield, 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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Bakersfield's southern San Joaquin Valley location creates persistent temperature inversions that trap heat and pollution. The valley's agricultural dust and extreme summer heat add environmental migraine triggers beyond barometric pressure alone.
Worst season for migraines: February and March. Winter Pacific storms that crest the Tehachapi and Sierra Nevada ranges bring the southern San Joaquin Valley most of its pressure drops, peaking in February, when 32% of days see a 5 hPa drop. No month reaches the 35% of days our index uses for a trigger season. Air quality can be the bigger concern here, as the valley's bowl geography traps pollutants under temperature inversions.
Common triggers in Bakersfield: San Joaquin Valley temperature inversions trapping PM2.5 pollution, Tehachapi Pass wind events, agricultural dust and pesticide particulates. Bakersfield sits at 400 feet at the southern end of the San Joaquin Valley, hemmed in by the Sierra Nevada to the east, the Tehachapi Mountains to the south, and the Temblor Range to the west. This nearly enclosed basin creates some of the worst air quality in the United States, with particulate matter from agriculture, oil production, and vehicle emissions trapped under inversions. The Tehachapi Pass funnels wind between the valley and the Mojave Desert, creating localized wind events that stir up dust and allergens.
Typical pressure: Bakersfield 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 992 hPa. Swings of 3-7 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Bakersfield ranks #94 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Bakersfield weather trigger migraines?
Yes. Bakersfield experiences 3-7 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include San Joaquin Valley temperature inversions trapping PM2.5 pollution, Tehachapi Pass wind events, agricultural dust and pesticide particulates.
What time of year are migraines worst in Bakersfield?
In Bakersfield the most barometrically volatile stretch of the year falls in February and 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 Bakersfield?
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 Bakersfield 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 Bakersfield. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Bakersfield's swings really line up with your attacks, and alerts you when conditions match your own trigger history.