The main objective of this study was to characterize the heavy rainfall events in Pampanga from 1976-2005. It aimed to identify the grid/s that frequently experience the incidences of heavy rainfall. Also, it aimed to analyze the month/s of heavy rainfall occurrence/s in Pampanga and to determine the significant difference of the three (3) decades/periods. This study may provide additional knowledge and awareness to the members of the community regarding heavy and extreme rainfall events. It may also serve as a guide to improve the agriculture production as well as the livelihood of the people in Pampanga. This study was conducted at the Regional Climate System (RCS) in Manila Observatory, Quezon City, where the datasets from Aphrodite of daily rainfall from 1976-2005 were taken. It was calculated on the different grid points of Pampanga using the latitude, longitude and threshold of rainfall. The number or count of events above the heavy and extreme thresholds, the 90th percentile refer as heavy while 95th percentile, referred as the extreme rainfall events. Based on the results, three months (July, August and September) obtained the highest count of heavy and extreme events in Pampanga. Grid C experienced the most frequent heavy rainfall, especially in the towns of San Simon and Apalit. The researcher recommends the use other data sets to investigate heavy and extreme rainfall. Other researchers may study the impacts of heavy rainfall on the livestock and crop production, especially on rice in Pampanga. In addition, other researchers may also characterize heavy rainfall events in another region/s or province/s.