{"station":{"icao":"KORD","cliId":"ORD","pil":"CLIORD","city":{"slug":"chicago","name":"시카고","country":"United States"},"timezone":"America/Chicago","feed":"https://api.weather.gov/products/types/CLI/locations/ORD","html":"https://weathermarket.io/nws-cli/KORD","json":"https://weathermarket.io/api/nws-cli/KORD"},"stationToday":"2026-11-14","day":{"date":"2026-09-03","status":"issued","note":"Final CLI issued - values.nwsOfficial carries the official daily values (metric here; official.issued.asReported keeps the °F / inch / mph exactly as printed).","settlement":{"tmaxF":91,"tminF":77,"precipIn":0,"precipTrace":false,"tmax":32.78,"tmin":25,"precip":0,"issuedAt":"2026-09-04T06:38:00.000Z","productId":"iem:CDUS43-KLOT-040638:ORD:2026-09-03:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202609040638"},"issues":[{"kind":"interim","asOfLocal":"0400 PM","issuedAt":"2026-09-03T21:35:00.000Z","issuedLocal":"435 PM CDT THU SEP 03 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 032135","productId":"iem:CDUS43-KLOT-032135:ORD:2026-09-03:interim","source":"iem-afos","corrected":false,"tmaxF":91,"tmaxTimeLocal":"2:59 PM","tminF":79,"tminTimeLocal":"5:37 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202609032135","parseProblems":[],"rawTextSha256":"2689c09a8f88a7c9c8fda7358053b55f5e15f158564976eea2693086bcf1bcac","rawText":"CDUS43 KLOT 032135\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n435 PM CDT THU SEP 03 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 3 2026...\nVALID TODAY AS OF 0400 PM LOCAL TIME.\n\nCLIMATE NORMAL PERIOD: 1991 TO 2020\nCLIMATE RECORD PERIOD: 1871 TO 2026\n\n\nWEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST \n VALUE (LST) VALUE VALUE FROM YEAR \n NORMAL \n...................................................................\nTEMPERATURE (F) \n TODAY \n MAXIMUM 91 2:59 PM 97 1953 80 11 72 \n MINIMUM 79 5:37 AM 47 1974 62 17 55 \n AVERAGE 85 71 14 64 \n\nPRECIPITATION (IN) \n TODAY 0.00 1.92 1961 0.11 -0.11 0.01 \n MONTH TO DATE 0.00 0.35 -0.35 0.01 \n SINCE SEP 1 0.00 0.35 -0.35 0.01 \n SINCE JAN 1 30.97 27.06 3.91 22.46 \n\nSNOWFALL (IN) \n TODAY 0.0 0.0 MM 0.0 0.0 0.0 \n MONTH TO DATE 0.0 0.0 0.0 0.0 \n SINCE SEP 1 0.0 0.0 0.0 0.0 \n SINCE JUL 1 0.0 0.0 0.0 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n TODAY 0 0 0 1 \n MONTH TO DATE 0 0 0 1 \n SINCE SEP 1 0 0 0 1 \n SINCE JUL 1 0 6 -6 6 \n\n COOLING \n TODAY 20 6 14 0 \n MONTH TO DATE 63 19 44 8 \n SINCE SEP 1 63 19 44 8 \n SINCE JAN 1 989 891 98 1000 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (350) \n HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (340) \n AVERAGE WIND SPEED 8.4 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.6 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n THUNDERSTORM \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 82 2:00 AM \n LOWEST 54 3:00 PM \n AVERAGE 68 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 80 95 1954 \n 1960 \n 1983 \n MINIMUM TEMPERATURE (F) 62 45 1982 \n 1997 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 3 2026.....SUNRISE 6:19 AM CDT SUNSET 7:22 PM CDT \nSEPTEMBER 4 2026.....SUNRISE 6:20 AM CDT SUNSET 7:20 PM CDT \n\n\n- INDICATES NEGATIVE NUMBERS.\nR INDICATES RECORD WAS SET OR TIED.\nMM INDICATES DATA IS MISSING.\nT INDICATES TRACE AMOUNT.\n\n\n\n\n$$"},{"kind":"final","asOfLocal":null,"issuedAt":"2026-09-04T06:38:00.000Z","issuedLocal":"138 AM CDT FRI SEP 04 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 040638","productId":"iem:CDUS43-KLOT-040638:ORD:2026-09-03:final","source":"iem-afos","corrected":false,"tmaxF":91,"tmaxTimeLocal":"3:05 PM","tminF":77,"tminTimeLocal":"11:43 PM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202609040638","parseProblems":[],"rawTextSha256":"49084da51683da164dc59e14c32310eb0757bc3b6032e495a4108a88b7b2b6fa","rawText":"CDUS43 KLOT 040638\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n138 AM CDT FRI SEP 04 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 3 2026...\n\nCLIMATE NORMAL PERIOD: 1991 TO 2020\nCLIMATE RECORD PERIOD: 1871 TO 2026\n\n\nWEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST \n VALUE (LST) VALUE VALUE FROM YEAR \n NORMAL \n...................................................................\nTEMPERATURE (F) \n YESTERDAY \n MAXIMUM 91 3:05 PM 97 1953 80 11 72 \n MINIMUM 77 11:43 PM 47 1974 62 15 55 \n AVERAGE 84 71 13 64 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 1.92 1961 0.11 -0.11 0.01 \n MONTH TO DATE 0.00 0.35 -0.35 0.01 \n SINCE SEP 1 0.00 0.35 -0.35 0.01 \n SINCE JAN 1 30.97 27.06 3.91 22.46 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0 \n MONTH TO DATE 0.0 0.0 0.0 0.0 \n SINCE SEP 1 0.0 0.0 0.0 0.0 \n SINCE JUL 1 0.0 0.0 0.0 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n YESTERDAY 0 0 0 1 \n MONTH TO DATE 0 0 0 1 \n SINCE SEP 1 0 0 0 1 \n SINCE JUL 1 0 6 -6 6 \n\n COOLING \n YESTERDAY 19 6 13 0 \n MONTH TO DATE 62 19 43 8 \n SINCE SEP 1 62 19 43 8 \n SINCE JAN 1 988 891 97 1000 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (350) \n HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (340) \n AVERAGE WIND SPEED 7.1 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.4 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n THUNDERSTORM \n HAZE \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 82 2:00 AM \n LOWEST 54 3:00 PM \n AVERAGE 68 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 80 95 1954 \n 1960 \n 1983 \n MINIMUM TEMPERATURE (F) 62 45 1982 \n 1997 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 4 2026.....SUNRISE 6:20 AM CDT SUNSET 7:20 PM CDT \nSEPTEMBER 5 2026.....SUNRISE 6:21 AM CDT SUNSET 7:18 PM CDT \n\n\n- INDICATES NEGATIVE NUMBERS.\nR INDICATES RECORD WAS SET OR TIED.\nMM INDICATES DATA IS MISSING.\nT INDICATES TRACE AMOUNT.\n\n\n\n\n$$"}],"html":"https://weathermarket.io/nws-cli/KORD/2026-09-03","json":"https://weathermarket.io/api/nws-cli/KORD/2026-09-03"},"about":{"product":"NWS Climatological Report (CLI): the daily climate summary issued by the local NWS forecast office from the station's 1-minute ASOS record, normally 1-3 hours after local midnight (final, 'YESTERDAY') and once during the day (interim, 'TODAY AS OF'). Corrections are re-issued under the same PIL with CORRECTED in the text.","settlementRule":"The settlement value for a date is the latest final CLI issued for that date; a corrected re-issue supersedes earlier issues. Interim same-day products never settle. This is the same rule that fills values.nwsOfficial in /api/station/{icao}/daily.","archive":"Every issue is stored verbatim as received - nothing is edited or re-derived. Products are held from 2026-09-01 (backfilled from the IEM AFOS archive) and ingested live from api.weather.gov since 2026-11-10, polled every 30 minutes. A date with no final CLI 14 hours after local midnight is reported as not_issued rather than filled in.","verify":["Each issue carries the NWS product id (api.weather.gov keeps products for a limited time) and a link to the IEM AFOS permanent archive of the same product.","rawTextSha256 is the SHA-256 of the stored product text; compare it with the text at either link to confirm nothing was altered.","Permalink pattern for market rules: https://weathermarket.io/nws-cli/KORD/YYYY-MM-DD (HTML) and https://weathermarket.io/api/nws-cli/KORD/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the final NWS Climatological Report (CLI) for station KORD for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KORD/YYYY-MM-DD with links to the NWS product and the IEM archive. A CORRECTED re-issue published before the settlement time supersedes earlier issues."}}