docsendpointsaccuracy-by-date

Accuracy By Date

GET/api/v1/accuracy/by-date

Accuracy per calendar day, optionally filtered by station. Also available as /api/v1/accuracy/by-date/:station_id for path-based station filtering. Returns per-day stats including count, mean_error, std_dev, mae, and rmse.

Parameters

Name	Type	Required	Description
`station_id`	string	optional	Filter to one station (or use path /by-date/:station_id)
`city`	string	optional	Filter by city name
`days`	integer	optional	Rolling window Default: 90
`date_from`	YYYY-MM-DD	optional	Window start
`date_to`	YYYY-MM-DD	optional	Window end
`metric`	string	optional	high (default) or low — daily high vs daily low verification Default: high

Response Fields

Field	Type	Description
`date`	string	Calendar date (YYYY-MM-DD)
`station_id`	string	ICAO station identifier
`city_name`	string	Display name
`sample_size`	integer	Verification pairs for this date
`stats`	object	{ verification_pairs, unique_days, mean_error, std_dev, mae, rmse }

← Accuracy Summary

Accuracy By City →

cURL

curl -s -H "Authorization: Bearer $API_KEY" "https://api.deltadaemon.com/api/v1/accuracy/by-date/KLAX?days=14"

JSON

{
  "success": true,
  "data": [
    {
      "date": "2026-02-22",
      "station_id": "KBOS",
      "city_name": "Boston",
      "stats": {
        "verification_pairs": 12,
        "unique_days": 1,
        "mean_error": 5.72,
        "std_dev": 0.79,
        "mae": 5.72,
        "rmse": 5.77,
        "abs_error_p50": 5.8,
        "abs_error_p90": 6.8,
        "abs_error_p95": 6.8
      },
      "sample_size": 12
    }
  ],
  "metadata": {
    "generated_at": "2026-02-22T07:53:30.366738584Z",
    "days_analyzed": 30,
    "period_start": "2026-01-23",
    "period_end": "2026-02-22",
    "total_records": 872,
    "query_time_ms": 4
  }
}

cURL

curl -s -H "Authorization: Bearer $API_KEY" "https://api.deltadaemon.com/api/v1/accuracy/by-date/KLAX?days=14"

JSON

{
  "success": true,
  "data": [
    {
      "date": "2026-02-22",
      "station_id": "KBOS",
      "city_name": "Boston",
      "stats": {
        "verification_pairs": 12,
        "unique_days": 1,
        "mean_error": 5.72,
        "std_dev": 0.79,
        "mae": 5.72,
        "rmse": 5.77,
        "abs_error_p50": 5.8,
        "abs_error_p90": 6.8,
        "abs_error_p95": 6.8
      },
      "sample_size": 12
    }
  ],
  "metadata": {
    "generated_at": "2026-02-22T07:53:30.366738584Z",
    "days_analyzed": 30,
    "period_start": "2026-01-23",
    "period_end": "2026-02-22",
    "total_records": 872,
    "query_time_ms": 4
  }
}