It’s not our imagination. Headaches really can be weather-related.
A study of more than 7,000 patients seen in a Boston emergency room between the years 2000 and 2007 found that hot temperatures did send more people to hospital with headaches — both regular and migraine headaches. Low barometric pressure also sent people in with headaches, but air pollution didn’t seem to be a factor. The study was published in 2009 in the journal Neurology