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RAINFALL VARIATIONS DURING ENSO


AMERICA SAMOA SEASONAL RAINFALL VARIATIONS DURING ENSO
(Values are % of normal)
El Nino Year (0) Year (+1)
Winter Spring Summer Fall Winter Spring Summer Fall
103% 116% 110% 114% 109% 107% 92% 104%
La Nina Year (0) Year (+1)
Winter Spring Summer Fall Winter Spring Summer Fall
114% 87% 94% 90% 99% 86% 72% 81%

Note: 120% of normal rainfall means rainfall is 20% above normal value (wet condition).
Similarly, 80% of normal rainfall means rainfall is 20% below its historical value (dry condition).

Pacific ENSO Applications Climate Center
Last Updated: December 13, 2007

peac@noaa.gov

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