Several of my fellow bike commuters are talking about the "heavy" rain that's been in the Bay Area. I heard one guy talk about the "sheets" of rain falling from the sky the other week.
For those outside of California, I'll describe the typical California rain storm. Take a spray bottle -- the kind you use to mist your plants. Hold it about six inches from your face and spray yourself until the bottle is empty. That's a heavy rainstorm in the San Francisco Bay Area. I'm not joking. It's not even a drizzle like you guys up in Seattle get. Occasionally we'll even have a mild zephyr to accompany the storm.
A heavy rainstorm in just about any other location is hauling a 30 gallon trashcan up to a second floor balcony and filling with water. Optionally add an 8 pound bag of ice (for the hail), small twigs, frogs, puppies, scrap lumber, etc. Stand under the balcony as several of your friends lift the can up and over so the contents of the trashcan fall directly on you and your bike, with the trashcan tumbling immediately afterwards into you. That's a spring storm anywhere in the U.S. Midwest and South. Of course it's not really a storm unless 80 mph winds knock down utility poles.
I dunno fritz, it was coming down pretty good northbound up Foothill Expressway this morning. Most of the commute was, as you describe, more of a refreshing spritz than a real downpour, but it served to get me pretty thoroughly drenched. Good fun!
I'm from the Northeast. Maine to be exact. I'd love to experience one of your rain storms about now. I've been off the bike for weeks due to some early snow, and it's piling up. We can't seem to go a week without at least one storm. Some only dump an inch or so. Others several inches. This is more snow I've seen in December in years. Last year we were riding into mid-January with the lack of snow. But not this year. Count your blessings!