Houston (https://en.wikipedia.org/wiki/Houston https://en.wikipedia.org/wiki/Houston) is absolutely not dry in the least. I'm guessing here, but I'd be hard pre

Houston (https://en.wikipedia.org/wiki/Houston https://en.wikipedia.org/wiki/Houston) is absolutely not dry in the least. I'm guessing here, but I'd be hard pressed to name a more consistently humid US city. Obviously, Texas is a single place to people who don't live here, but be aware that at 269K square miles (686K sq km), it's fucking huge. It's almost 800 miles across (ie, the distance between Louisiana and New Mexico). So there's LOTS of variety in climate. The dry climate you associate with movie-Texas does definitely exist, but mostly in the western half of the state, & especially as you move down towards the Mexican border. Houston, however, sits on the Gulf Coast. (Houston proper isn't on the water, but the overall metro area includes Galveston, which is an island in the Gulf.) The Gulf Stream curves over us and keeps us warm and wet. Not for nothing, but our annual rainfall is pretty insanely high (~49 inches). See more: https://en.wikipedia.org/wiki/Climate_of_Houston https://en.wikipedia.org/wiki/Climate_of_Houston Anyway, in a very humid place like this, swamp coolers that depend on evaporation are of limited utility.