Is London one of the driest cities in Europe?

No, London is not one of the driest cities in Europe. The average annual rainfall in London is about 635 millimeters (25 inches), which is higher than the average annual rainfall in many other European cities. For example, the average annual rainfall in Rome is about 762 millimeters (30 inches), and the average annual rainfall in Madrid is about 425 millimeters (17 inches).