How do El Niño and La Niña affect temperatures in northern New England?

How do El Niño and La Niña affect temperatures in northern New England?

Background: Have you ever heard of El Niño and La Niña? They are opposite ends of a cycle of varying temperatures in the Pacific Ocean. El Niño is characterized by warmer than average ocean temperatures and La Niña is characterized by colder than average ocean temperatures. This phenomena affects weather patterns throughout the world, even as far away as Maine.

The box plots show the distributions for average winter temperatures for the X years from 1950 to 2014 under three different conditions: El Niño (warm Pacific Ocean), La Niña (cold Pacific Ocean), and Neutral (average Pacific Ocean temperatures).   The winter average is the average temperature for the three months of January, February, and March (the JFM of the graph's title) for that year.  

Data Source: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/ENSO/box_whiskers/

Questions: 

1.  Describe what the graph shows about the distribution of wintertime temperatures  in northern New England (January, February, and March) in El Niño, La Niña, and Neutral years.

2. I interpret the graph to mean….  

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