[
{"station_id": "WX-001", "timestamp": "2026-03-31T00:00:00Z", "temp_c": 15.2, "temp_f": 59.36, "humidity_pct": 68, "pressure_hpa": 1013.25, "wind_speed_ms": 3.4, "wind_dir_deg": 225, "precip_mm": 0.0, "quality": "good"},
{"station_id": "WX-001", "timestamp": "2026-03-31T01:00:00Z", "temp_c": 14.8, "temp_f": "58.64", "humidity_pct": 71, "pressure_hpa": 1013.10, "wind_speed_ms": 4.1, "wind_dir_deg": 230, "precip_mm": 0.0, "quality": "good"},
{"station_id": "WX-002", "timestamp": "2026-03-31T00:00:00Z", "temp_c": -9999, "temp_f": -9999, "humidity_pct": -9999, "pressure_hpa": 1008.50, "wind_speed_ms": 12.3, "wind_dir_deg": 180, "precip_mm": 2.4, "quality": "sensor_fault"},
{"station_id": "WX-002", "timestamp": "2026-03-31T01:00:00Z", "temp_c": 8.1, "temp_f": 46.58, "humidity_pct": 92, "pressure_hpa": 1008.30, "wind_speed_ms": "calm", "wind_dir_deg": null, "precip_mm": 5.1, "quality": "partial"},
{"station_id": "WX-003", "timestamp": 1711843200, "temp_c": "22.5", "temp_f": "72.5", "humidity_pct": "45", "pressure_hpa": "1015.00", "wind_speed_ms": "1.2", "wind_dir_deg": "90", "precip_mm": "0.0", "quality": "good", "solar_radiation_wm2": 450},
{"station_id": "WX-003", "timestamp": "2026-03-31T01:00:00Z", "temp_c": 21.8, "temp_f": 71.24, "humidity_pct": 48, "pressure_hpa": 1014.90, "wind_speed_ms": 0.8, "wind_dir_deg": 95, "precip_mm": 0, "quality": "good", "solar_radiation_wm2": 0, "uv_index": 0}
]