{"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":"2026-11-13","day":{"date":"2026-10-27","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":69,"tminF":53,"precipIn":0,"precipTrace":false,"tmax":20.56,"tmin":11.67,"precip":0,"issuedAt":"2026-10-28T06:48:00.000Z","productId":"iem:CDUS43-KLOT-280648:ORD:2026-10-27:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202610280648"},"issues":[{"kind":"interim","asOfLocal":"0400 PM","issuedAt":"2026-10-27T21:34:00.000Z","issuedLocal":"434 PM CDT TUE OCT 27 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 272134","productId":"iem:CDUS43-KLOT-272134:ORD:2026-10-27:interim","source":"iem-afos","corrected":false,"tmaxF":69,"tmaxTimeLocal":"2:37 PM","tminF":53,"tminTimeLocal":"5:56 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202610272134","parseProblems":[],"rawTextSha256":"163dadb4a97a919001105300320cac66894cbd3322603e360007521217b31d07","rawText":"CDUS43 KLOT 272134\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n434 PM CDT TUE OCT 27 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 27 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 69 2:37 PM 83 1927 58 11 57 \n MINIMUM 53 5:56 AM 24 1942 42 11 45 \n AVERAGE 61 50 11 51 \n\nPRECIPITATION (IN) \n TODAY 0.00 1.56 1947 0.11 -0.11 0.00 \n MONTH TO DATE 2.54 3.01 -0.47 2.53 \n SINCE SEP 1 6.24 6.20 0.04 3.02 \n SINCE JAN 1 37.21 32.91 4.30 25.47 \n\nSNOWFALL (IN) \n TODAY 0.0 2.7 1967 0.0 0.0 0.0 \n MONTH TO DATE 0.0 0.1 -0.1 0.0 \n SINCE SEP 1 0.0 0.1 -0.1 0.0 \n SINCE JUL 1 0.0 0.1 -0.1 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n TODAY 4 16 -12 14 \n MONTH TO DATE 126 291 -165 199 \n SINCE SEP 1 153 368 -215 231 \n SINCE JUL 1 153 374 -221 236 \n\n COOLING \n TODAY 0 0 0 0 \n MONTH TO DATE 31 12 19 57 \n SINCE SEP 1 218 128 90 223 \n SINCE JAN 1 1144 1000 144 1215 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (150) \n HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (160) \n AVERAGE WIND SPEED 6.3 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.8 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n FOG \n HAZE \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 89 5:00 AM \n LOWEST 55 3:00 PM \n AVERAGE 72 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 57 80 1999 \n MINIMUM TEMPERATURE (F) 41 19 1925 \n\n\nSUNRISE AND SUNSET \nOCTOBER 27 2026.......SUNRISE 7:18 AM CDT SUNSET 5:52 PM CDT \nOCTOBER 28 2026.......SUNRISE 7:19 AM CDT SUNSET 5:51 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":"2026-10-28T06:48:00.000Z","issuedLocal":"148 AM CDT WED OCT 28 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 280648","productId":"iem:CDUS43-KLOT-280648:ORD:2026-10-27:final","source":"iem-afos","corrected":false,"tmaxF":69,"tmaxTimeLocal":"2:37 PM","tminF":53,"tminTimeLocal":"5:56 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202610280648","parseProblems":[],"rawTextSha256":"6807417d70bd3fe04686a22b677c825fea23944264affc66d5efeded32029cf4","rawText":"CDUS43 KLOT 280648\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n148 AM CDT WED OCT 28 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 27 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 69 2:37 PM 83 1927 58 11 57 \n MINIMUM 53 5:56 AM 24 1942 42 11 45 \n AVERAGE 61 50 11 51 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 1.56 1947 0.11 -0.11 0.00 \n MONTH TO DATE 2.54 3.01 -0.47 2.53 \n SINCE SEP 1 6.24 6.20 0.04 3.02 \n SINCE JAN 1 37.21 32.91 4.30 25.47 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 2.7 1967 0.0 0.0 0.0 \n MONTH TO DATE 0.0 0.1 -0.1 0.0 \n SINCE SEP 1 0.0 0.1 -0.1 0.0 \n SINCE JUL 1 0.0 0.1 -0.1 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n YESTERDAY 4 16 -12 14 \n MONTH TO DATE 126 291 -165 199 \n SINCE SEP 1 153 368 -215 231 \n SINCE JUL 1 153 374 -221 236 \n\n COOLING \n YESTERDAY 0 0 0 0 \n MONTH TO DATE 31 12 19 57 \n SINCE SEP 1 218 128 90 223 \n SINCE JAN 1 1144 1000 144 1215 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (150) \n HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (160) \n AVERAGE WIND SPEED 5.8 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.8 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n FOG \n HAZE \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 89 5:00 AM \n LOWEST 55 3:00 PM \n AVERAGE 72 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 57 80 1999 \n MINIMUM TEMPERATURE (F) 41 19 1925 \n\n\nSUNRISE AND SUNSET \nOCTOBER 28 2026.......SUNRISE 7:19 AM CDT SUNSET 5:51 PM CDT \nOCTOBER 29 2026.......SUNRISE 7:21 AM CDT SUNSET 5:49 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/2026-10-27","json":"https://weathermarket.io/api/nws-cli/KORD/2026-10-27"},"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."}}