Top One Day Rainfalls at GWC – 2026

The largest one-day rainfall total in 2026 at Greg’s Weather Center in South Plainfield, NJ was 2.02 inches on August 3rd.

The year 2026 has not seen a lot of potent storms at Greg’s Weather Center in South Plainfield, NJ until recently.  One key characteristic of many of these storms has been the torrential rainfall. 

So far in 2026, there have been 17 storms that have produced one-day rainfall amounts of over three-quarters of an inch of rain.  Nine of those storms have occurred since June 22nd. 

There have only been eight storms that produced at least an inch of rain.  Six of the storms have occurred within the last 60 days.  View the top one-day rainfalls of 2026 below.

DateRainfall Amount (inches)Peak Rainfall Rate (inches/hour)
8/3/20262.024.17
10/11/20261.981.03
8/20/20261.935.05
7/9/20261.903.89
9/13/20261.822.69
7/18/20261.706.13
9/27/20261.580.80
3/5/20261.371.48
8/7/20261.3614.05
4/25/20261.040.36
9/26/20261.011.39
6/22/20261.001.30
Table 1: Top One-Day Rainfalls at Greg’s Weather Center in 2026
Severe storms at Greg’s Weather Center in South Plainfield, NJ on July 18th produced nearly an inch and three-quarters of rainfall.