29th February

[roe-dl]

Describe the bug

Beginning with 00:00 there are error messages in the log:

Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine: Caught unrecoverable exception in generator 'user.belchertown.HighchartsJsonGenerator'
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****  day is out of range for month
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****  Traceback (most recent call last):
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****    File "/usr/share/weewx/weewx/reportengine.py", line 201, in run
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****      obj.start()
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****    File "/usr/share/weewx/weewx/reportengine.py", line 394, in start
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****      self.run()
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****    File "/usr/share/weewx/user/belchertown.py", line 2536, in run
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****      span_start, span_stop = archiveSpanSpan(
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****    File "/usr/share/weewx/weeutil/weeutil.py", line 341, in archiveSpanSpan
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****      start_dt = time_dt.replace(year=year, month=month)
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****  ValueError: day is out of range for month
Feb 29 07:45:36 LokalWiki weewx[604942] ERROR weewx.reportengine:         ****  Generator terminated

Some JSON files in the json sub-directory are not cretated any more.

Link to your website (IMPORTANT)

https://www.woellsdorf-wetter.de

Version of the skin you're using

1.3b1

To Reproduce

It simply happens.

Expected behavior

JSON files will be created even for the 29th of February.

Device Information (please complete the following information):

not applicable

Additional context

none

[roe-dl]

According to @bellrichm in weewx/weewx#941 (comment) the option month_delta is deprecated, which is used within the statement that causes the error.