The 2016-17 rainy season in California broke a five-year drought. During those dry years, the state and local governments imposed a number of regulations to conserve water. For example, new homes could not have lawns, watering outdoor plants was limited to specific hours of the day two days a week, and washing cars with running water was forbidden. Some restrictions have been eased while others remain in place. There are no guarantees when it comes to predicting annual rainfall in California.