IRI Home

Precipitation Probabilities Station Data

El Niño Precipitation Probabilities
La Niña Precipitation Probabilities
> January to March
> April to June
> July to September
> October to December

July to September Precipitation Probabilities During La Niña

These plots show the percent of El Niño years during the 1900-1990 period when rainfall during July to September was either below normal, normal, or above normal. Each point represents the data at a station.

Below Normal
  El Nino composite Jul to Sep
Near Normal
 
Above Normal
Color scale