{"site_no":"05437500","name":"Rock River at Rockton, IL","slug":"rock-river-at-rockton-il","url":"https://streamflowdata.com/stations/rock-river-at-rockton-il","state":"IL","county":"Winnebago County","lat":42.4502778,"lng":-89.0725,"drainage_area_sqmi":6363,"datum_ft":707.75,"huc_code":"07090005","river":{"name":"Rock River","slug":"rock-river-il"},"current":{"reading_time":"2026-05-30T00:30:00+00:00","discharge_cfs":4690,"gage_height_ft":5.02},"flood_stage":{"action_stage_ft":8.5,"flood_stage_ft":10,"moderate_flood_ft":11,"major_flood_ft":14},"today_statistics":{"month":6,"day":11,"p10":1750,"p25":2440,"p50":3980,"p75":6030,"p95":13200},"recent_daily_values":[{"date":"2026-05-28","discharge_cfs":4790,"gage_height_ft":5.08},{"date":"2026-05-27","discharge_cfs":4560,"gage_height_ft":4.94},{"date":"2026-05-26","discharge_cfs":4680,"gage_height_ft":5.01},{"date":"2026-05-25","discharge_cfs":5320,"gage_height_ft":5.37},{"date":"2026-05-24","discharge_cfs":5460,"gage_height_ft":5.45},{"date":"2026-05-23","discharge_cfs":5750,"gage_height_ft":5.61},{"date":"2026-05-22","discharge_cfs":6050,"gage_height_ft":5.77},{"date":"2026-05-21","discharge_cfs":6190,"gage_height_ft":5.84},{"date":"2026-05-20","discharge_cfs":6380,"gage_height_ft":5.94},{"date":"2026-05-19","discharge_cfs":6540,"gage_height_ft":6.02},{"date":"2026-05-18","discharge_cfs":6720,"gage_height_ft":6.12},{"date":"2026-05-17","discharge_cfs":6970,"gage_height_ft":6.26},{"date":"2026-05-16","discharge_cfs":7070,"gage_height_ft":6.32},{"date":"2026-05-15","discharge_cfs":7270,"gage_height_ft":6.42},{"date":"2026-04-20","discharge_cfs":20800,"gage_height_ft":12.2},{"date":"2026-04-19","discharge_cfs":21600,"gage_height_ft":12.48},{"date":"2026-04-18","discharge_cfs":20500,"gage_height_ft":12.07},{"date":"2026-04-17","discharge_cfs":16100,"gage_height_ft":10.42},{"date":"2026-04-16","discharge_cfs":14600,"gage_height_ft":9.83},{"date":"2026-04-15","discharge_cfs":11000,"gage_height_ft":8.28},{"date":"2026-04-14","discharge_cfs":8540,"gage_height_ft":7.08},{"date":"2026-04-13","discharge_cfs":7970,"gage_height_ft":6.79},{"date":"2026-04-12","discharge_cfs":7920,"gage_height_ft":6.77},{"date":"2026-04-11","discharge_cfs":7920,"gage_height_ft":6.76},{"date":"2026-04-10","discharge_cfs":7600,"gage_height_ft":6.6},{"date":"2026-04-09","discharge_cfs":7250,"gage_height_ft":6.41},{"date":"2026-04-08","discharge_cfs":7580,"gage_height_ft":6.59},{"date":"2026-04-07","discharge_cfs":7790,"gage_height_ft":6.7},{"date":"2026-04-06","discharge_cfs":7680,"gage_height_ft":6.64},{"date":"2026-04-05","discharge_cfs":7480,"gage_height_ft":6.53},{"date":"2026-04-04","discharge_cfs":6950,"gage_height_ft":6.25},{"date":"2026-04-03","discharge_cfs":6230,"gage_height_ft":5.86},{"date":"2026-04-02","discharge_cfs":5730,"gage_height_ft":5.6},{"date":"2026-04-01","discharge_cfs":5530,"gage_height_ft":5.49},{"date":"2026-03-31","discharge_cfs":5550,"gage_height_ft":5.5},{"date":"2026-03-30","discharge_cfs":5560,"gage_height_ft":5.51},{"date":"2026-03-29","discharge_cfs":5670,"gage_height_ft":5.56},{"date":"2026-03-28","discharge_cfs":5810,"gage_height_ft":5.64},{"date":"2026-03-27","discharge_cfs":6100,"gage_height_ft":5.79},{"date":"2026-03-26","discharge_cfs":6140,"gage_height_ft":5.81},{"date":"2026-03-25","discharge_cfs":6250,"gage_height_ft":5.87},{"date":"2026-03-24","discharge_cfs":6530,"gage_height_ft":6.02},{"date":"2026-03-23","discharge_cfs":6780,"gage_height_ft":6.15},{"date":"2026-03-22","discharge_cfs":6770,"gage_height_ft":6.15},{"date":"2026-03-21","discharge_cfs":6620,"gage_height_ft":6.07},{"date":"2026-03-20","discharge_cfs":6420,"gage_height_ft":5.96},{"date":"2026-03-19","discharge_cfs":6080,"gage_height_ft":5.78},{"date":"2026-03-18","discharge_cfs":6050,"gage_height_ft":5.76},{"date":"2026-03-17","discharge_cfs":6080,"gage_height_ft":5.78},{"date":"2026-03-16","discharge_cfs":6310,"gage_height_ft":5.9},{"date":"2026-03-15","discharge_cfs":5640,"gage_height_ft":5.55},{"date":"2026-03-14","discharge_cfs":5150,"gage_height_ft":5.28},{"date":"2026-03-13","discharge_cfs":5140,"gage_height_ft":5.28},{"date":"2026-03-12","discharge_cfs":5500,"gage_height_ft":5.47},{"date":"2026-03-11","discharge_cfs":5400,"gage_height_ft":5.41},{"date":"2026-03-10","discharge_cfs":4420,"gage_height_ft":4.86},{"date":"2026-03-09","discharge_cfs":3830,"gage_height_ft":4.5},{"date":"2026-03-08","discharge_cfs":3640,"gage_height_ft":4.38},{"date":"2026-03-07","discharge_cfs":3460,"gage_height_ft":4.26},{"date":"2026-03-06","discharge_cfs":3270,"gage_height_ft":4.14}],"sources":{"usgs_nwis":"https://waterdata.usgs.gov/nwis","noaa_nwps":"https://api.water.noaa.gov/nwps/v1"},"license":"USGS data is in the public domain. Attribution: USGS National Water Information System (NWIS)."}