everything came out wrong. From the data, my house should have cooled down by a degree, but the temperature rose by 3.5°F.
I was sitting on my front porch thinking about this, decided that the air in the crawl space was probably stratified, and probably contributed little to the whole house heat equation. So I removed the 22,000 BTU it would have absorbed. The net BTU gain turned out to be 14,000 BTU, which, at 5000 BTU/°F, yields 2.8°F, which is very close to the 3.5°F temperature gain.
The only other significant heat source in the house was the refrigerator.