US EPA Heatwave Index 1895-2013 Shows 1930s Hottest By Far

US Environmental Protection Agency website shows the this graph of US Annual Heat Wave Index, 1895-2013

US EPA Heatwave Index 1895-2013

www.epa.gov/climatechange/science/indicators/weather-climate/high-low-temps.html

 

So I guess the 1930’s were the hottest then?

Strange CO2 levels were much lower then.

h/t joannenova.com.au

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