Brake lockup in rain

I notive that whenever it rains or is a day with high humidity my brakes seem to lockup very easily. I have a 1994 Camaro and I'm sure it has antilock brakes. After I use the brakes awhile they seem to stop doing this, but right when I start they are so touchy. I don't know if there is any way to solve this but if there is or someone else has the same problem let me know thanks.

mine have always done that too, with both cars.

its the piss-poor chevy abs system...