I live in Texas also. It didn't rain for the same 8 months here. I am on city water and use ~900 gallons a month. The well depth here is ~400'. I wish I wasn't required to be hooked to city water. I have ~3500 SF of roof I could collect and store.
It also didn't rain the whole 8 months where my brother has a house and there are NO wells to a depth of over 5000 feet. He is on a catchment system with ~8,000 gallons of water storage. His catchment area is about 8,000 SF. He never ran low on water but got worried last winter.
My mother lives just south of Fort Worth. The "1st Trinity" sands there are ~1300 SF. She is on city water.
I have a friend who lives 15 miles East of here. His well is 40' deep with water standing at 14'.
All of these places are within 40 miles driving distance of my place. I could have kept my normal water consumption with 3-1500 gallon tanks. If I had to, I'll bet I could lower my water consumption by half and not effect my life style in any appreciable way. These tanks would cost me $650 each. I could pay for one each year for my minimum city services bill. I would probably only have 3000 gallons storage and only need to cut water usage once every 20 years.
The decisions are all yours. But, don't get stuck on using that hole just because it is there.
Ron