This morning, in Southeastern Michigan, the temperature is hovering in the upper 20s. Here are a couple of charts of those recorded temperatures from stations just several miles apart. Note what happens at 8:30 am [station numbers show the temperatures at the various reporting points].
These are private "weather stations" that are part of the "Weather Underground" reporting system. Looking at the charts above, can you guess which one might be situated in a sheltered area with an unblocked view of the sun?
Anthony Watts has a whole series of posts dedicated to how similar misplaced "official" weather stations have affected our perception of "global warming."
GIGO
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