Two general types of statistics are available: Flex table and Long Term Continuous Simulation.

Flex table statistics are available by right clicking the top of any column with numerical data.

Modelers are often required to summarize the results of Long Term Continuous Simulations in terms of parameters such as number of overflows, volume discharged or other similar properties. While these results can be prepared by manually reviewing model runs, the software can calculate these statistics when the SWMM hydrology engine or Implicit engine is used. After a simulation is completed, the software can perform statistical frequency analysis on any of the variables of each element in model. The software can perform statistical frequency analysis on system results, such as temperature, precipitation, snow depth, or runoff.

A statistical report can then be generated from the time series of simulation results by selecting Analysis > Analysis Tools > More... > Statistics.