I’m a self-admitted perfectionist, but I have to say that even with the limited amount of rain in SD county, rain gutters are a must.
Without them, you get stucco staining, deterioration, and mud splatters with practically any home design.
It is readily apparent walking around neighborhoods which homes do and don’t have gutters, without even looking up at the eaves. If you don’t believe me, walk around your neighborhood and make a game of it.
As an added bonus, the sound of the water gently flowing through the downspouts is quite soothing, especially since tile roofs mute the direct pitter patter of the direct raindrops.