About Lightning in Arizona
Located at approximately 33°N latitude, Arizona is a desert state transformed by the North American Monsoon, when moisture surges from the Gulf of California trigger intense afternoon thunderstorms with dramatic dust storms called haboobs. Thunderstorm frequency varies within state boundaries, so this page does not publish an unsupported statewide annual average or national rank.
In Arizona, the North American Monsoon brings surges of moisture from the Gulf of California. Peak thunderstorm activity occurs during July through September, when conditions align for the most frequent lightning strikes. With a population of 7.2 million residents, storm awareness and lightning safety are important considerations for anyone living in or visiting Arizona.