Americans are drinking less. That's killing Dry January.

Getty Images; Tyler Le/BI

Angelo Warren has never poured as much hard liquor in his 10 years of bartending as he has over the past few months. Even this January, when there would typically be a pullback, has been pretty busy. His bar does a lot of corporate events where attendees drink for free, and people who would typically take it easy around their bosses are cutting loose. "I've had to cut off hosts of parties because they're drinking too much," Warren, who lives in Chicago, says.

Outside of events...