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December 2024 Monthly Synoptic Discussion

NCEI Monthly Report · last updated
The North American circulation was characterized by ridging and warmer than normal conditions during the month of December across most of the U.S. During the month, warmer than normal conditions were seen over most of the U.S., except for the East Coast states. Drier than normal conditions were also observed across the Southwest, with above-normal precipitation observed in the Pacific Northwest and the Mississippi River Valley.