DataMAINTAINED2 tokens / call

River Conditions API

Live river conditions from every active USGS stream gauge. A searchable directory of 11,605 active US streamgages (all 50 states, DC and Puerto Rico) with nearest-gauge lookup by coordinates — and live readings fetched straight from the USGS instantaneous-values service and edge-cached 15 minutes: streamflow discharge (ft³/s), gage height (ft) and water temperature (°C). The Colorado at Lees Ferry right now: 7,740 cfs, 7.95 ft, 20.2 °C, timestamped. Ask for up to 10 sites in one call, one site's detail, or the nearest gauges to a point with their conditions inline (Boulder CO → Fourmile Creek at Orodell, 4.9 km). Every reading carries its own timestamp and a stale flag when a sensor has gone quiet for 24+ hours — a discontinued temperature series never masquerades as current. Fishing and kayaking apps, flood awareness, irrigation tools, hydro dashboards and outdoor trip planners — the same data behind every river-levels site, from the primary source. US coverage (USGS network).

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response.json

{
  "ok": true,
  "site": {
    "id": "09380000",
    "name": "COLORADO RIVER AT LEES FERRY, AZ",
    "state": "AZ",
    "lat": 36.86433,
    "lng": -111.58787,
    "huc": "140700061105"
  },
  "units": {
    "discharge_cfs": "ft3/s",
    "gage_height_ft": "ft",
    "water_temp_c": "degC"
  },
  "conditions": {
    "gage_height_ft": {
      "value": 8.3,
      "time": "2026-09-13T03:00:00+00:00",
      "stale": false
    },
    "discharge_cfs": {
      "value": 8740,
      "time": "2026-09-13T03:00:00+00:00",
      "stale": false
    },
    "water_temp_c": {
      "value": 21.8,
      "time": "2026-09-13T03:00:00+00:00",
      "stale": false
    }
  }
}

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