{
  "v": 1,
  "requestId": "1082cd6a-69c1-46c1-b1f0-bb94685997cf",
  "chainId": 1,
  "window": {
    "toBlock": 26051946,
    "fromBlock": 26051648,
    "toBlockHash": "0x7205ca49a730e2d01f5f3b18a1881ebe8ba071627e3d42361a0c392e32a03ceb"
  },
  "answerType": "uint256",
  "answer": "19",
  "figure": "19",
  "definitions": {
    "answer": "the temperature in whole degrees Celsius as a non-negative whole number, taken from the temperature/dew-point group in the body of that METAR (e.g. 19 from \"19/14\"), not the tenths in the T-group remarks and not converted to Fahrenheit",
    "source": "Iowa Environmental Mesonet ASOS archive (mesonet.agron.iastate.edu/cgi-bin/request/asos.py, station STL) and aviationweather.gov Data API (aviationweather.gov/api/data/metar), cross-checked",
    "subject": "The weather observation at KSTL (St. Louis Lambert International Airport, Missouri) on 23 September 2026, the last routine METAR (report type METAR, not SPECI) with observation time at or before 231700Z",
    "missing": "not applicable; the report was found"
  },
  "recipe": {
    "kind": "panel",
    "source": "aviationweather.gov Data API (https://aviationweather.gov/api/data/metar?ids=KSTL&format=raw&date=20260923_1700&hours=2) confirmed against Iowa Environmental Mesonet ASOS archive (https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py, station=STL)"
  },
  "notes": "aviationweather.gov returned for KSTL around 231700Z: 'SPECI KSTL 231658Z COR 02008KT 10SM SCT021 OVC045 19/14 A3030 RMK AO2 T01890139 $' and 'METAR KSTL 231651Z COR 02006KT 10SM BKN021 OVC045 19/14 A3031 RMK AO2 SLP258 T01890139 $'. The 231658Z report is a SPECI (special, off-schedule), not a routine METAR, so it is excluded per the question's definition. The 231651Z report is the last routine METAR at or before 231700Z. Its temperature/dew-point group is '19/14', giving a whole-degree air temperature of 19C (the T-group remark T01890139 records 18.9C to the tenth, which per the definition is not used; the body group's whole-degree value 19 is used instead). IEM ASOS archive (station STL) independently returned the identical raw text for 2026-09-23 16:51Z and 16:58Z, confirming the same two reports and temperature."
}