Five Times:Has that ever happened before?
- 1892 - 1894
 - 1908 - 1910
 - 1954 - 1956
 - 1973 - 1975
 - 1998 - 2000
 
					
				Ensemble Oceanic Nino Index
Figure 1. December 1877 Tropical Pacific sea surface temperature anomalies via HADISST2.1
				
					
						
					
					www.webberweather.com
				
			
				