When I was "young" (or on my Big OE for the kiwi's on the forum) I messenger-ed for 2 years in Central London on a beat up blue Raleigh.
As I said... London; i.e. cloud every day (well 362/year), rain about 1/2 the time and snow in the winter when all the other companies were off the roads and ours made a mint .
That cured me of all-weather riding for *life*

However I do occasionally go out in the rain (which is even more occasional in this part of the world) just for the sheer joy of it