I believe what you experienced was a front moving in. The last day was probably high pressure post front conditions. Typically these are the toughest days for fishing. Usually the best days for fishing ( as you experienced ) is just before the front is moving in.
This is the best time to use faster moving baits like spinnerbaits , topwares ect.... the bass will be feeding heavily.
During the post front conditions ( high blue bird skies ) is when you would be better off throwing thinks like soft plastics ( senkos ) and jigs.
Slow things down and pick your areas apart methodically. You know the fish are there from the previous day so the strike window is now smaller.