Luc, Some comments below.
Gary On Monday, 23 March 2020 03:27:50 UTC+10, Lucas Heijst wrote: > > Gary, > > I completed a run from 2019-02-04 to 2019-03-01 and got 6957 records. > > The derived data went OK. > > 23 records had NULL for cloudbase, humidex and apptemp because outhumidity > was NULL (so far so good) > Doesn't surprise me, I never expect 100% data from WU for a number of reasons. > 159 records had NULL for pressure and altimeter. Can't think of why. Which > values are needed for those calculations? > WeeWX field pressure requires outTemp (current and 12 hours ago), barometer, outHumidiy and station altitude. WeeWX field altimeter requires pressure and station altitude. I am guessing that one or more of outTemp (current or 12 hours ago), barometer or outHumidity was missing in 159 of the imported records (or perhaps outTemp was missing in some existing records in the 12 hours before the start time of your imported data) and that caused pressure to be left uncalculated. Then because there was no pressure altimeter was also left uncalculated. Should be easy enough to check with a few queries on the offending records. > Luc > -- You received this message because you are subscribed to the Google Groups "weewx-development" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-development+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-development/b693dbe3-6aa0-4d01-b5a5-c502885217d4%40googlegroups.com.