Does pitching in the rain affect your performance ?

I actually pitched last night in a game for 2 innings

The rain really affected my performance in that, the entire time I couldn't grip my fastball or changeup, and I had no control over my curve.
When I say I couldn't grip it, I more so mean, it wasn't comfortable, it was really slick.

We only use about 5 baseballs, and by the time I came in to pitch [closer] they were all soaked.
It killed my velocity because of the heavier ball
and affected my control

Oh, and it is definatly annoying to have mud stuck to your cleats.

Dh my son hates it .He was tired after 5 innings. He managed to get yhrough it but it wasn't pretty.
Some guys seem to be able to throw in wet weather.

I can't stand it, it really affects the control of my fastball but not as much as my curveball and slider. I don't know why.

the rain really doesnt bother me...my fastball change up and curve ususally work better when it rains and i have no idea why