[wedn3sday]

I think one of the issues here is that the plots just arent setup right for this kind of thing. The main take away plot of the least squares fit goes from -6 to +6, when a -1/+1 change is HUGE. The change only looks small because the plots vertical axis isn't formatted correctly.

There are many additional areas of analysis you could do with this dataset, for example, although the temps may be in the same range, how have those temps changed seasonally? A warmer January and a cooler September can average out to what looks like no change annually, but a couple degrees warmer in January can have huge environmental affects.