Anecdotal: In all my years voting, this is by far the most people I have ever seen. Normally I vote around noon and for my district, rarely am I voter #XYZ, usually voter #XY.
Today I showed up at 6:15am, 15 minutes after the polls opened and I was #48! I couldn't park at my polling center, I had to park about 1/10th of a mile down the road and walk in. I waited in line for 30 minutes. I have never waited more than 10.
I am in NY however, but still. I saw entire families there to vote. It was awesome!