inveniam viam

I'm trying to wrap my head around what a .9°C increase in the average world temperature between 2010 and 2019 will look like. What I've thought of doing is to make a fingerprint of the averages of cities -- what they were in the 1970s and what they were from 2000-2009.

I started with NYC; I dunno why. I've got a list of about 50 more cities that I want to do.

Here are the averages:

1970-1979
70-79 °F ------ 68.3 days
80-89 °F ------ 61.8 days
90-99 °F ------ 11.3 days
100-104 °F --- .2 days
above 104 °F - 0

I split up the 2000s because it was going up so fast:

2000-2004
70-79 °F ------ 62.8 days
80-89 °F ------ 65 days
90-99 °F ------ 12 days
100-104 °F --- .2 days
above 104 °F - 0

2005-2009
70-79 °F ------ 58 days
80-89 °F ------ 72.8 days
90-99 °F ------ 12 days
100-104 °F --- 0 days
above 104 °F - 0

If you average the whole of the 2000's, you get:

2000-2009
70-79 °F ------ 60.4days
80-89 °F ------ 68.9 days
90-99 °F ------ 12 days
100-104 °F --- .1 days
above 104 °F - 0

The two year average of 2010 and 2011 is

70-79 °F ------ 61.5 days
80-89 °F ------ 105 days
90-99 °F ------ 26.6 days
100-104 °F --- 2 days
above 104 °F - 0

For comparison, here's the 1970-79 average for Baltimore MD

70-79 °F ------ 68.3 days
80-89 °F ------ 75.3 days
90-99 °F ------ 19.7 days
100-104 °F --- 0 days
above 104 °F - 0

And the 1970-79 averages for Richmond, VA

70-79 °F ------ 74.9 days
80-89 °F ------ 85.3 days
90-99 °F ------ 30.7 days
100-104 °F --- .6 days
above 104 °F - 0

It would be better to take the 1960-1989 average, but large chunks of the temperature data is missing from Wunderground, the website I'm using.

It looks like, to me, that NYC has traveled on to Baltimore and is heading at quite a clip toward Richmond. One could argue that the 2010-2011 average is too small of a data set, but I think that it shows a trend -- and with this year being a new low for ice loss in the arctic, next year will probably be as warm or warmer