There is proverb from the town I am currently living in like this: "Entweder regnet es in Münster, oder es läuten die Glocken. Geschieht beides gleichzeitig, ist Sonntag.“ (It's either raining in Münster or one hears the bell ring. If there is both, then it's Sunday.) Out of 365 days in a year, we get rainy weather in roughly 300 of them. Also, we seldom got downpour. In most times it's drizzle. It's such a common scene for the city residents that none of us really cares about it any more. Most of us wear waterproof jackets. Therefore when it starts to rain, the only thing we need to do is to get hooded. 

Quiz time: how to spot a tourist in my town? ;)