If you think that's a lot though, just keep in mind that yesterday, 24 inches of rain fell in almost a 24 hour period in the Deep South and into the Florida panhandle. The IR satellite below also speaks for itself.
Elsewhere the Northern Plains are still seeing nighttime snow mixing into their rain, and it's supposed to be the last day of April. So with all that said, in the NY metro area 3-5" of rain isn't too bad in comparison. Just keep an umbrella handy, maybe a poncho as well.