I definitely get more flat tires when the roads are wet. Here is my theory:
I ride crushed rock roads. There are big chips, little chips, dull chips and very, very small, very, very sharp rock chips. About the size of a match head.
I figure that when it's dry out, my tires just ride over the chips. When it's wet out the little chips stick to the tire and they go for a little ride until they fall off. While they're sticking to the tire from the dampness, occasionally a chip will turn perpendicular to the tire then it will get pushed in to the tube and cause a flat. I can go for months without a flat when it's dry out. The other day it was wet and I got two flats. Couple days before then and a couple of days after I also got a flat. It was wet out each time I got the flats.
Anyone else ever experience anything like this, or am I crazy?