NOTE: The ENSO composites have recently been revised in three ways: (1) We are now using a 1981-2010 climatology for temperature, precipitation, and snowfall. Therefore the anomalies shown reflect the departures from the 1981-2010 average. (2) Also, the composites have been updated through October-December 2010. (3) The gridded precipitation dataset is new and is referenced in Xie, P., M. Chen, and W. Shi, 2010: CPC unified gauge-based analysis of global daily precipitation. AMS 24th Conf. on Hydrology. Jan.18 -21, 2010, Atlanta, GA. Data can be found at: ftp.cpc.ncep.noaa.gov/precip/CPC_UNI_PRCP