A statistical analysis of the spatiotemporal characteristics of hourly heavy rainfall ( HHR ) events and rainstorm days, defined as greater than 20 mm h −1 and 50 mm day −1 , respectively, is performed using observations at 5‐min intervals from 155 automated weather stations ( AWSs ) over the Beijing metropolitan region ( BMR ) during the warm seasons of 2007–2014. Results show pronounced variability in the frequencies and rai...