Ahh… one more major change to Version 1.30 - 18-Jul-2019. This set of changes now fixes the display issues for Year and Month in Radomir’s wxwugraphs. Only WXDailyHistory.php (and the README.md) were changed.
If you’re using Radomir’s wxwugraphs scripts, you’ll need to clean out your wxwugraphs/cache/ files to get good CSV files stored by WXDailyHistory.php returns. See the README.md on the distribution for details. Thanks again to Holger for testing this out.