Louisiana Weekly Climate Summary: December 3-9, 2025

By Jay Grymes

Louisiana State Climatologist

Several rounds of precipitation moved through the Bayou State from Dec 3 to Dec 7 in association with low pressure off the Gulf Coast, persistent upper-level southwesterly flow from the Pacific, and a frontal passage on Dec 7. 

Two NWS Flood Advisories and a Flash Flood Warning were issued on Dec 4 for areas in southern Louisiana in response to some areas receiving several inches of rain in less than 24 hours. 

Rain totals across southern and central Louisiana were above 7-day normals; by contrast, totals were below-normal for the northern third of the state.