Method. Volumes are accumulated from October 1 of the current water year through the most recent complete day, and compared against the median accumulation over the same calendar window in prior water years — not against complete-year totals. This keeps the comparison like-for-like partway through a water year; a partial year measured against full years would understate flow at every station. This differs from NRCS and CBRFC products, which use a fixed 1991–2020 normal period for every station regardless of gage age; figures here will not match those exactly. * marks stations where one or more years were excluded for gaps; hover the station name for the exact count.