Is it normal to be aroused but not wet?

I tried masturbating today, and while I was able to achieve a pretty strong long lasting orgasm, I was completely dry the whole time. Usually I get wet pretty fast, and I'm capable of squirting (female ejaculation). This has happened a couple of times before, and it also happens if I go at it too long. I sort of just dry up then, but today, completely dry, beginning to end. Is something wrong with me?