Texas to Georgia Face Drier Summer as El Nino Suppresses Gulf Coast Rainfall Through September
UNITED STATES — A developing El Nino is set to push summer rainfall significantly below normal across the Gulf Coast and Southeast, based on composite data averaged across the last five strong El Nino years — 1972, 1982, 1997, 2015, and 2023.
Gulf Coast From Texas to Alabama Faces the Steepest Rainfall Deficit
The precipitation anomaly composite shows the most pronounced drying signal across Texas, Louisiana, Mississippi, Alabama, and Georgia during the June through September period. Anomalies in this corridor run as low as negative 4.0 to negative 8.0 inches below the 1991 to 2020 long-term average — a significant summer rainfall deficit across a wide zone.
Florida Peninsula Largely Escapes the El Nino Drying Pattern
Despite the strong drying signal across the Gulf states, the Florida peninsula shows little to no meaningful impact. Composite anomaly values across most of the peninsula sit near 0.0, meaning the El Nino rainfall relationship is essentially negligible south of the Panhandle. Reduced Atlantic tropical storm activity during El Nino summers contributes slightly to drier conditions on the margins, but the overall Florida impact remains minor.
Two Regions Actually Get Wetter During El Nino Summers
| Region | Signal | Anomaly Range |
|---|---|---|
| Pacific Northwest and northern Rockies | Wetter than normal | Positive 4.0 to 6.0 inches |
| Northeast coastal corridor | Minor wet boost | Positive 2.0 to 4.0 inches |
| Texas to Florida Panhandle | Significantly drier | Negative 4.0 to negative 8.0 inches |
| Florida peninsula | Little to no impact | Near 0.0 |
The Southeast Makes Up Lost Ground in Late Fall and Winter
The dry summer signal does not define the full-year picture. During El Nino years, the Southeast typically sees elevated rainfall return during late fall and winter, offsetting a portion of the summer deficit over time.
Stay with CabarrusWeekly.com for continuing coverage of El Nino impacts and seasonal weather outlooks across the United States.
