: I compared the recommendations in this app to the recommendations in "The Old Farmer's Almanac" website. They seem to be based on the same set of data, and like your experience, when I put in my zip code, I was given recommendations for a town about ten miles away. However, TOFA gives a clue, for it says that the information is coming from a specific "climate station."
A quick check of the internet discovers that the weather station listed by TOFA is one of the official weather stations of NOAA. If you go to http://www.ncdc.noaa.gov/land-based-station-data/find-station
you can find the climate station closest to you and insert the zip code of that station into either of these apps and get recommendations based on the closest data.