graham, first look in the database to see exactly what values are recorded there. it is quite possible that the weather station emitted one or more spurious values. if that is the case, then you can simply delete those values from the database, then re-generate the summaries.
https://github.com/weewx/weewx/wiki/Cleaning-up-old-'bad'-data m -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
