Well, it is better than no rain, but I understand your concern. Are you doing any kind of water collection off your roof? Texas has quite a few articles about the worth and methods of doing that.
I ran across the information when I was researching info on cisterns and water collection. I didn’t save the link though. I think it was one of the university extension services that had a bunch of info.
IIRC, there may also be some kind of tax credit for implementing.
I would like to put a cistern filled by the gutters, but the HOA has rules
“that all such water storage tanks be less than 55 gallons. If the tanks exceeds 55 gallons, it shall be enclosed with the same design as the exterior of the house or other permanent fixture. Larger tanks may be buried underground with no penalty”.
Well hells bells. Anyone who thinks I am going to put up a cistern with field stone around it is crazy. The only place I can dig more than a foot deep is where my garden is located. Every else is about 4 - 6 inches of soil on unknown depths of limestone shelf. I am thinking about two or three 55 gallon barrels at two downspouts.
My neighbor used a rock saw to cut down over 10 feet to build his two story house to meet the HOA code. He got a guy with a rock hammer mounted on a backhoe to jackhammer the holes for two 1500 gallon underground tanks and a pool.