If the data does not show up by April 1st, you can use my NOAAGET utility to update your March file.
Described here >>>> noaaget
You cannot use it yet since all the current month’s data actually goes into a different file than what my utility will place data it recovers from your WUnderground data.
Current month’s data goes into dailynoaareport.htm versus the archived files are all labeled dailynoaareportmyyyy.htm