Dec 1-23, 2023, is running 0.3F warmer than the same period in 2021 - which is the warmest December on record for the Contiguous U.S. The final 8 days of 2023 would need to average 4.9F above normal to eclipse the Dec 2021 record. pic.twitter.com/IrSqzGdsTm

— Brian Brettschneider (@Climatologist49) December 24, 2023