Around the time of Stan's existence, torrential rainstorms dropped upwards of 20 inches (500 mm) of rain, causing severe flash floods, mud slides, and crop damage (particularly to the coffee crop which was close to harvest) over portions of Mexico and Central America, including Guatemala, El Salvador, Nicaragua, Honduras, and Costa Rica. Most of the rainstorms were non-tropical in nature and impossible to relate to the hurricane; however, the impact of the larger weather system can be considered as a whole.