Flooding
Abundant rainfall can lead to flooding, especially in areas situated near a river or other body of water. Flooding occurs when rainfall causes a body of water to rise above its banks, at which point the water spills into surrounding cities. Smaller-scale flooding can also occur in areas not situated near a body of water, especially in low-lying areas. When flooding occurs, buildings are cosmetically or structurally damaged, and any affected roads are often required to be shut down.
Erosion
Erosion occurs when rainfall wears away at solid objects located on the ground. Erosion especially affects houses and other structures built on or near the edge of a hill. Over time, soil from the hill will be eroded away and carried downhill. This can expose and destabilize the foundation of structures built on the hill. Erosion also affects structures themselves. Over time, rainfall can erode enough material away from the foundation of a building such that its structural integrity is compromised.
Landslides
Landslides and mudslides are an extreme effect of erosion. Landslides occur when rain water undercuts a section of land or rocks on the side of a hill. After enough erosion occurs, a large chunk of mud, rocks and other debris will break loose and fall down the hill, gathering a mass of debris as it does. Aside from the typical effects of erosion, the landslide debris itself blocks roadways and destroys most objects in its path, including vehicles and structures.
Seasonal Depression
Seasonal affective disorder, often indicated by the acronym SAD, is a type of mental depression that is brought on by seasonal changes. Generally, those affected with SAD will feel down or depressed during extended periods of rainy, cold, and/or gray weather. Therefore, various degrees of seasonal depression are more likely to develop in people who live in areas with a high amount of rainy weather.