The University of Arizona

Regional Impacts Timeline | CLIMAS

Regional Impacts Timeline

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