Bolivia will expect excess rain in most of Bolivia for October,2011; during November and December, rain will continue everywhere but southwest Bolivia (parts of Oruro and most of Potosi) where there will be draught, reported the Meteorology and Hydrology National Service (SENAMHI) to La Razon.

TEMPERATURES. Regarding temperatures for this month, previsions state that heat will be over averages in great parts of Oruro, Pando, Beni, the Chaco region and some valleys of La Paz. However, in half of the provinces of Chuquisaca, the provinces of Velasco, Ñuflo de Chávez, Guarayos, Warnes, Sara, Ichilo and Santiesteban in Santa Cruz, there will be temperatures below their normal averages for this time of the year, which are warmer.

http://www.la-razon.com/version.php?ArticleId=139164&EditionId=2683

If you want to know more about La Niña, you can take a look at the link below, from National Oceanic Atmospheric Administration (NOAA), United States Department of Commerce.

http://www.noaanews.noaa.gov/stories2011/20110908_lanina.html