IPython Notebook automated download of barometric data

A friend of mine is considering moving his family from Denver to San Diego due to his family's sensitivity to sudden air pressure changes. To see whether San Diego would actually be more barometrically stable, I coded up some automated download and bar charts in an IPython Notebook (direct download). The notebook loops through and downloads 12 months of hourly data text files from NOAA.

The resulting charts are below. This can be considered part 1 of a two-part article. Next week, I'll demonstrate a much more interesting visualization.