...and another thing about riding in the rain, it's therapeutic. 
Here's my thinking on that.  The rain cools your muscles so unless you are really going apeshit will keep you from over asserting yourself.
I have a problem with riding too hard all the time; fast is fun.  I know I should take it easy sometimes, but I just can't.  Riding in the rain makes that happen.
Not being able to see my computer helps too; if I can't see the metrics, I won't try and break any route records or have any expectations of how far or fast I should be.
Chicks pay top dollar for this kind of 411 in NY.

Does using "411" horribly date me?  Should I change the name of this blog to Chester rides a Velocipede?