I want to cluster 10 different sites based upon different parameters like temperature, humidity, rain, etc. for monthly data collected over a period of 2 years.
Should I use means of all 24 data samples for each parameter or the whole data sets?
Moreover, these parameters are on different scale of measurement: Is standardization necessary in this case? If so, how would I do it?
Finally, does there exist a cutoff value for deciding of clusters number in a dendrogram?