when I do it here, I get each day being downloaded and adding to the data in the window (which scrolls)
once that has finished you should have a logfile with all the data in it for the whole month
and that logfile us converted to data file at the end
there is a problem though where wunderground must use cookies…it downloads as metric for me (and so it works for me by ticking metric)
but it must be downloading as non metric for you
what I could do is add another function to convert that downloaded data (force a convert) (the wudownloaddata.txt file)
the other issue is irrregular time stamps periods in your wunderground data…not easy to pad it out to nice 1 minute interval