With temperatures having steadily increased due to global warming over the past several decades, new and higher 30-year averages based on readings between 1981 and 2010 are established by the US National Weather Service.

http://www.azcentral.com/community/phoenix/articles/2011/07/24/20110724phoenix-hotter-drier-new-normal-for-valley.html
http://blog.chron.com/sciguy/2011/07/houstons-new-normal-temperature-1-degree-warmer/  

Scientists in India state that as of the end of July 2011, the capital Delhi is registering a 64% shortage of rain compared to other normal monsoon years, with concerns being raised as the region's aquifers threaten to run dry.

http://reliefweb.int/node/435427
http://articles.timesofindia.indiatimes.com/2011-07-22/india/29802706_1_normal-monsoon-rain-deficit-rainfall