Get verified summary water-level products from a NOAA station:
- high_low: each day's observed highs/lows with ty = HH (higher high), H, L, LL (lower low). Max 1 year per request.
- daily_mean: daily mean levels — GREAT LAKES STATIONS ONLY; NOAA requires local standard time, which this tool applies automatically. Max 10 years.
- daily_max_min: daily maxima/minima from hourly and 6-minute data with completeness percentages. Max 10 years.
- monthly_mean: monthly tidal datum means (columns MHHW, MHW, MSL, MTL, MLW, MLLW, DTL, GT, MN, DHQ, DLQ, HWI, LWI, highest, lowest). Max 200 years — ideal for long-term climatology.
Use for: historical extremes, mixed-tide analysis (HH vs H), long-term averages. For raw time series use noaa_get_water_levels; for future tides use noaa_get_tide_predictions.
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