About Lightning in Indiana
Located at approximately 40°N latitude, Indiana is positioned in the central Midwest, where warm moist air from the Ohio and Wabash valleys combines with frontal systems to produce regular spring and summer thunderstorms. Thunderstorm frequency varies within state boundaries, so this page does not publish an unsupported statewide annual average or national rank.
In Indiana, frontal boundaries and warm moist air from the south converge across flat terrain. Peak thunderstorm activity occurs during May through August, when conditions align for the most frequent lightning strikes. With a population of 6.8 million residents, storm awareness and lightning safety are important considerations for anyone living in or visiting Indiana.