Parse a GHCN-Daily fixed-width station record and compute QC-aware monthly TMAX/TMIN means with valid-day…

Parse a GHCN-Daily fixed-width station record and compute QC-aware monthly TMAX/TMIN means with valid-day…: a task in pool-desk-v4 (Harbor dataset). I need monthly temperature summaries for one of our cooperative weather stations, built straight from its daily record, for January 2022 through…