No, and neither do you have any evidence he didn't. Much has been written pro and con about his faith, but I believe he best put it himself. On June 25, 1819, he wrote to Ezra Stiles Ely, "I am of a sect by myself, as far as I know." That proves nothing either way. The modern caretakers of Monticello seem to go out of their way to prove he was not a Christian, but his writings, his church attendance, the real reasons behind his attempts to ferret out the nuggets of gold from among what he thought were corrupted texts -- many today still make that claim -- paint him at the very least a nominal Christian. Perhaps you can ask him if you see him in heaven. If you don't see him, you'll know he wasn't.