Here is a time lapse video of weather conditions in South Plainfield on August 10, 2012. On this day, heavy rain developed from thunderstorms that came through around lunchtime. Total rainfall was 1.53 inches according to the CoCoRaHS rain gauge. Rainfall rates were as high as 5.33 inches per hour during the storm. The rainfall was the heaviest so far this summer, and it doubled the total rainfall for the month.