The James River reaches tidewater at Richmond where flooding may occur in every month of the year, most frequently in March and least in July. Hurricanes and tropical storms have been responsible for most of the flooding during the summer and early fall months. Hurricanes passing near Richmond have produced record rainfalls. In 1955, three hurricanes brought record rainfall to Richmond within a six-week period. The most noteworthy of these were Hurricane Connie and Hurricane Diane that brought heavy rains five days apart. And in 2004, the downtown area suffered extensive flood damage after the remnants of Hurricane Gaston dumped up to 12 inches (300 mm) of rainfall.