I put this site together, glad it's useful for you. The graphs are my take on climatographs.
The data is from the National Oceanic and Atmospheric Administration National Climatic Data Center, see http://www.ncdc.noaa.gov/. The dataset has good coverage of the US, but as people have pointed out, there are gaps in many places, such as the UK. The comparison is based on the monthly average max and min temperatures.
Re:Find Cities with Similar Climates
by DoubleCluster on Saturday July 06, 2013 @09:32PM
(#6000697)
If you can't find any cities how are you going to evaluate the rest of the features? I'm not going to play "guess the city".
That said, I'd love to see more details about the underlying dataset; given the way the search works it appears to be a SQL database, so I assume it's public data from somewhere?