{"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":"2026-09-29","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":78,"tminF":54,"precipIn":0,"precipTrace":false,"tmax":25.56,"tmin":12.22,"precip":0,"issuedAt":"2026-09-30T06:44:00.000Z","productId":"iem:CDUS43-KLOT-300644:ORD:2026-09-29:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202609300644"},"issues":[{"kind":"interim","asOfLocal":"0400 PM","issuedAt":"2026-09-29T21:34:00.000Z","issuedLocal":"434 PM CDT TUE SEP 29 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 292134","productId":"iem:CDUS43-KLOT-292134:ORD:2026-09-29:interim","source":"iem-afos","corrected":false,"tmaxF":78,"tmaxTimeLocal":"2:56 PM","tminF":54,"tminTimeLocal":"6:37 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202609292134","parseProblems":[],"rawTextSha256":"a489f634201a3ddbe40079f753feec985e076590f33cb347600c4617ec8e2c48","rawText":"CDUS43 KLOT 292134\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n434 PM CDT TUE SEP 29 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 29 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 78 2:56 PM 99 1953 70 8 89 \n MINIMUM 54 6:37 AM 32 1984 52 2 62 \n AVERAGE 66 61 5 76 \n\nPRECIPITATION (IN) \n TODAY 0.00 1.39 1921 0.09 -0.09 0.00 \n MONTH TO DATE 2.96 3.09 -0.13 0.49 \n SINCE SEP 1 2.96 3.09 -0.13 0.49 \n SINCE JAN 1 33.93 29.80 4.13 22.94 \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 6 -6 0 \n MONTH TO DATE 27 70 -43 32 \n SINCE SEP 1 27 70 -43 32 \n SINCE JUL 1 27 76 -49 37 \n\n COOLING \n TODAY 1 2 -1 11 \n MONTH TO DATE 187 116 71 158 \n SINCE SEP 1 187 116 71 158 \n SINCE JAN 1 1113 988 125 1150 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (170) \n HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200) \n AVERAGE WIND SPEED 3.6 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.4 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 100 6:00 AM \n LOWEST 37 3:00 PM \n AVERAGE 69 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 70 92 1971 \n MINIMUM TEMPERATURE (F) 51 29 1984 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 29 2026.....SUNRISE 6:46 AM CDT SUNSET 6:37 PM CDT \nSEPTEMBER 30 2026.....SUNRISE 6:48 AM CDT SUNSET 6:35 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":"2026-09-30T06:44:00.000Z","issuedLocal":"144 AM CDT WED SEP 30 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 300644","productId":"iem:CDUS43-KLOT-300644:ORD:2026-09-29:final","source":"iem-afos","corrected":false,"tmaxF":78,"tmaxTimeLocal":"3:29 PM","tminF":54,"tminTimeLocal":"6:37 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202609300644","parseProblems":[],"rawTextSha256":"c3092e5f061b15b39309c8fbd3c46e26842818e7f8417bb07982481c98cb91c7","rawText":"CDUS43 KLOT 300644\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n144 AM CDT WED SEP 30 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 29 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 78 3:29 PM 99 1953 70 8 89 \n MINIMUM 54 6:37 AM 32 1984 52 2 62 \n AVERAGE 66 61 5 76 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 1.39 1921 0.09 -0.09 0.00 \n MONTH TO DATE 2.96 3.09 -0.13 0.49 \n SINCE SEP 1 2.96 3.09 -0.13 0.49 \n SINCE JAN 1 33.93 29.80 4.13 22.94 \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 6 -6 0 \n MONTH TO DATE 27 70 -43 32 \n SINCE SEP 1 27 70 -43 32 \n SINCE JUL 1 27 76 -49 37 \n\n COOLING \n YESTERDAY 1 2 -1 11 \n MONTH TO DATE 187 116 71 158 \n SINCE SEP 1 187 116 71 158 \n SINCE JAN 1 1113 988 125 1150 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (170) \n HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (180) \n AVERAGE WIND SPEED 5.0 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.6 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 100 6:00 AM \n LOWEST 37 3:00 PM \n AVERAGE 69 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 70 92 1971 \n MINIMUM TEMPERATURE (F) 51 29 1984 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 30 2026.....SUNRISE 6:48 AM CDT SUNSET 6:35 PM CDT \nOCTOBER 1 2026.......SUNRISE 6:49 AM CDT SUNSET 6:33 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/2026-09-29","json":"https://weathermarket.io/api/nws-cli/KORD/2026-09-29"},"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."}}