On Friday, August 10, 2018 at 3:19:57 PM UTC+1, gjr80 wrote: > > In the daily summaries the 'max' field stores the max value of the obs for > the day (the row of the daily summary table) concerned. So for point in > time obs like temperature, humidity etc $year.outTemp.max will indeed > give the max outTemp value seen since 1 January of the current year and > $year.outTemp.maxtime will give the date-time it occurred. The same tag > will certainly work with rain, ie $year.rain.max but what that tag is > returning is not the max daily rainfall in the year to date but rather the > max rainfall seen in an archive period in the year to date, you are > treating rainfall more as a point in time observation. The $year.rain.sum > tag will give you the total rainfall in the year to date so it does not > help (it sums the daily summaries sum field). If you are looking for the > max daily rainfall in the year you want to look at the max of the sum > fields and to find the max value of the sum field you use the .maxsum > aggregation type in your tag ie $year.rain.maxsum. Date-time wise > $year.rain.maxtime may well provide the correct date-time that the > highest daily rainfall occurred (chances are high that the highest archive > period rainfall occurred on the day of highest total rainfall) but the > corresponding 'time' aggregate for .maxsum is .maxsumtime ie > $year.rain.maxsumtime. > > This may make a bit more sense if you refer to the Aggregation types > <http://weewx.com/docs/customizing.htm#aggregation_types> appendix in the > Customization Guide. > > Assuming you are using the alltime period provided by the xstats example > search list extension, the $alltime portion of the tag simply allows the > underlying query to use the entire daily summary table rather than just the > current year, month etc so $alltime.rain.maxsum and > $alltime.rain.maxsumtime should give you the results you are after. > > Gary >
Have checked my weewx.sdb and ALL rain records have a lot of decimal places, not just the historical records but live records to As an example 0.2mm looks always to be 0.00787405.... 0.4mm = 0.015748031.... Is this expected ???? Temp -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.