Tyler, I agree with what John said above, try some of those species that might be better adapted to your hot climate, such as almond agaricus, Brazilian agaricus, golden oyster, pink oyster, etc.
I have another idea that might work for you- try an indoor spawn run using large plastic bags to maintain moisture and humidity. For example, I grew almond agaricus last year in my house, without a humidifier. First, I purchased some fresh leached cow manure
compost from a local dairy. I mixed the compost with lime, then layered it in large organic banana boxes along with fresh agaricus spawn from Field and Forest, watered it, then covered the boxes with big plastic garbage bags. After about five weeks at room temperatures between 60 and 80, I was ready to add the casing (mulch) layer to promote fruiting. I use pre-moistened peat moss mixed with lime for the casing layer, using the instructions at the Mushroom Adventures website. Using only a mister, the casing layer and clear plastic sheeeting over the top, I was able to retain moisture in my dry house. I got three or four nice flushes of big, yummy mushrooms from the boxes, then started more boxes with the old spawn. You could try this method, and then try to inoculate an outdoor compost pile when you get a warm, wet cycle of weather. I also did successful indoor spawn runs with phoenix oyster on toilet paper rolls and king stropharia on fresh wood chips in boxes using similar methods. Good luck!