The graph below, from New Scientist, shows annual and 5-year-average temperatures for Philadelphia, 1880-1912. You can search any location in the world for comparison. the increase here has been on the order of 2 degrees centigrade (3.5 F); it is more like 4 degrees centigrade (7 F) in Arctic locations… where the ice is melting. The 0 degree baseline is the 1951-80 average for each location. The 2nd part of the chart shows that overall global temperature change is less than in certain locations.. such as ours and the Arctic. Interestingly, Florida and Louisiana show no increase, but along with the New York City area will be the first in this country to start losing real estate to rising seas and stronger storms.