{"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":"2026-10-26","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":62,"tminF":53,"precipIn":0,"precipTrace":false,"tmax":16.67,"tmin":11.67,"precip":0,"issuedAt":"2026-10-27T06:44:00.000Z","productId":"iem:CDUS43-KLOT-270644:ORD:2026-10-26:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202610270644"},"issues":[{"kind":"interim","asOfLocal":"0400 PM","issuedAt":"2026-10-26T21:37:00.000Z","issuedLocal":"437 PM CDT MON OCT 26 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 262137","productId":"iem:CDUS43-KLOT-262137:ORD:2026-10-26:interim","source":"iem-afos","corrected":false,"tmaxF":62,"tmaxTimeLocal":"12:26 PM","tminF":53,"tminTimeLocal":"3:17 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202610262137","parseProblems":[],"rawTextSha256":"351152c18013ef9af1f1bac29c1d7f9f4ce7be4eebff90863c1fec58931141b1","rawText":"CDUS43 KLOT 262137\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n437 PM CDT MON OCT 26 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 26 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 62 12:26 PM 84 1963 58 4 59 \n MINIMUM 53 3:17 AM 22 1887 42 11 44 \n 1942 \n AVERAGE 58 50 8 52 \n\nPRECIPITATION (IN) \n TODAY 0.00 2.18 2019 0.11 -0.11 0.00 \n MONTH TO DATE 2.54 2.90 -0.36 2.53 \n SINCE SEP 1 6.24 6.09 0.15 3.02 \n SINCE JAN 1 37.21 32.80 4.41 25.47 \n\nSNOWFALL (IN) \n TODAY 0.0 1.9 1957 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 7 15 -8 13 \n MONTH TO DATE 122 275 -153 185 \n SINCE SEP 1 149 352 -203 217 \n SINCE JUL 1 149 358 -209 222 \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 17 HIGHEST WIND DIRECTION NE (30) \n HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30) \n AVERAGE WIND SPEED 11.1 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.8 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 93 5:00 AM \n LOWEST 55 3:00 PM \n AVERAGE 74 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 58 83 1927 \n MINIMUM TEMPERATURE (F) 42 24 1942 \n\n\nSUNRISE AND SUNSET \nOCTOBER 26 2026.......SUNRISE 7:17 AM CDT SUNSET 5:53 PM CDT \nOCTOBER 27 2026.......SUNRISE 7:18 AM CDT SUNSET 5:52 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":"2026-10-27T06:44:00.000Z","issuedLocal":"144 AM CDT TUE OCT 27 2026","office":"KLOT","wmoHeader":"CDUS43 KLOT 270644","productId":"iem:CDUS43-KLOT-270644:ORD:2026-10-26:final","source":"iem-afos","corrected":false,"tmaxF":62,"tmaxTimeLocal":"12:26 PM","tminF":53,"tminTimeLocal":"3:17 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIORD&e=202610270644","parseProblems":[],"rawTextSha256":"8abd639035b9016c6c7c53b44c6542d28d2d13383a0499567828809be492017d","rawText":"CDUS43 KLOT 270644\nCLIORD\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE CHICAGO IL\n144 AM CDT TUE OCT 27 2026\n\n...................................\n\n...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 26 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 62 12:26 PM 84 1963 58 4 59 \n MINIMUM 53 3:17 AM 22 1887 42 11 44 \n 1942 \n AVERAGE 58 50 8 52 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 2.18 2019 0.11 -0.11 0.00 \n MONTH TO DATE 2.54 2.90 -0.36 2.53 \n SINCE SEP 1 6.24 6.09 0.15 3.02 \n SINCE JAN 1 37.21 32.80 4.41 25.47 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 1.9 1957 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 7 15 -8 13 \n MONTH TO DATE 122 275 -153 185 \n SINCE SEP 1 149 352 -203 217 \n SINCE JUL 1 149 358 -209 222 \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 20 HIGHEST WIND DIRECTION NE (30) \n HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (40) \n AVERAGE WIND SPEED 11.3 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.8 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 93 5:00 AM \n LOWEST 55 3:00 PM \n AVERAGE 74 \n\n..........................................................\n\n\nTHE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 58 83 1927 \n MINIMUM TEMPERATURE (F) 42 24 1942 \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$$"}],"html":"https://weathermarket.io/nws-cli/KORD/2026-10-26","json":"https://weathermarket.io/api/nws-cli/KORD/2026-10-26"},"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."}}