 Among the most significant earthquakes that were particularly devastating for Guardia were the 1694 Irpinia–Basilicata earthquake, which killed 280 Guardiesi, the 1732 Irpinia earthquake, the 1930 Irpinia earthquake, and the 1980 Irpinia earthquake, in which more than 50% of all buildings were destroyed.According to the Köppen climate classification, Guardia belongs to the Csa range (warm temperate climate, steppe-type precipitation, hot summer).It is within the temperate zone of the middle latitudes, but its climate is affected by its altitude and topography.