It looks like I have records going back to 2014. But many of those cultivars have died. Would you only want ones with a full 5 years of data?
Second, I'm not sure how you are going to get the temps. If you just look at the official temp for NYC that is taken in Central Park. My temps are often plus/minus 5 degrees (further north, less concrete). You'd have to get temps specifically for my borough.
