Drove up and back to NJ twice last week.
2 of the 4 legs were in torrential downpours.
Know what I realized?
You can actually go faster in the rain.
Safety permitting, of course.
Why?
I just noticed that when it is raining, there are no cops setting up speed traps.
The way I figure it, they don't really feel like pulling you over and standing outside in the rain asking for "license and registration" while they are getting wet.