The Ames and Boone airport weather stations are separated by just over twelve miles as the crow flies. On Wedneday, the high temperature at Ames was 78 and Boone was 77 making for just a one degree difference. The featured chart compares afternoon high temperatures between the sites by day of the year for the top panel and by average wind speed for the bottom panel. The shading represents population density. Qualitatively, there's not much difference between the two sites so having close high temperatures is common as one may expect for two close-by locations that have similar surrounding landuse. The wind panel tells the story here as typically the lower atmosphere is well mixed during the afternoon hours so micro-climate influences are mitigated. You can generate this plot, but for morning low temperatures and see a much different story as Ames trends cooler thanks to subtle topography and sandier soils.

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