Timeline of Seasonal El Niño Impacts in the Southwest
| Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | |
|---|---|---|---|---|---|---|---|---|
| Weather & Climate | Increased Tropical Storm Activity | Increased Chance of Above Average Precipitation | ||||||
| Risk of Extreme Cold Temps Reduced | ||||||||
| Human Health | Air Quality (Pollen) | Extended Season for Disease Vectors (Mosquitos) | ||||||
| Hydrology | Water Year Recap | Increased Flooding Potential | Potential La Niña Rebound | |||||
| Wildfire | Growth of Fine Fuels - Wildfire Risk Potential | Fire Season | ||||||