{"station":{"icao":"KIAH","cliId":"IAH","pil":"CLIIAH","city":{"slug":"houston","name":"휴스턴","country":"United States"},"timezone":"America/Chicago","feed":"https://api.weather.gov/products/types/CLI/locations/IAH","html":"https://weathermarket.io/nws-cli/KIAH","json":"https://weathermarket.io/api/nws-cli/KIAH"},"stationToday":"2026-11-14","day":{"date":"2026-09-18","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":94,"tminF":72,"precipIn":0,"precipTrace":false,"tmax":34.44,"tmin":22.22,"precip":0,"issuedAt":"2026-09-19T06:24:00.000Z","productId":"iem:CDUS44-KHGX-190624:IAH:2026-09-18:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIIAH&e=202609190624"},"issues":[{"kind":"interim","asOfLocal":"0400 PM","issuedAt":"2026-09-18T22:09:00.000Z","issuedLocal":"509 PM CDT FRI SEP 18 2026","office":"KHGX","wmoHeader":"CDUS44 KHGX 182209","productId":"iem:CDUS44-KHGX-182209:IAH:2026-09-18:interim","source":"iem-afos","corrected":false,"tmaxF":94,"tmaxTimeLocal":"2:51 PM","tminF":73,"tminTimeLocal":"3:00 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIIAH&e=202609182209","parseProblems":[],"rawTextSha256":"09ab838aefb2e5eda2fd4e40f4fc5f047d12d984751a51a71a69e68633eabe43","rawText":"CDUS44 KHGX 182209\nCLIIAH\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX\n509 PM CDT FRI SEP 18 2026\n\n...................................\n\n...THE HOUSTON INTERCONTINENTAL CLIMATE SUMMARY FOR SEPTEMBER 18 2026...\nVALID TODAY AS OF 0400 PM LOCAL TIME.\n\nCLIMATE NORMAL PERIOD: 1991 TO 2020\nCLIMATE RECORD PERIOD: 1889 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 94 2:51 PM 99 1927 90 4 93 \n MINIMUM 73 3:00 AM 54 1903 70 3 72 \n 1981 \n 2000 \n AVERAGE 84 80 4 83 \n\nPRECIPITATION (IN) \n TODAY 0.00 2.53 1908 0.15 -0.15 \n MONTH TO DATE 0.91 3.02 -2.11 \n SINCE SEP 1 0.91 3.02 -2.11 \n SINCE JAN 1 35.25 36.79 -1.54 \n\nSNOWFALL (IN) \n TODAY 0.0 \n MONTH TO DATE 0.0 \n SINCE SEP 1 0.0 \n SINCE JUL 1 0.0 \n\nDEGREE DAYS \n HEATING \n TODAY 0 0 0 0 \n MONTH TO DATE 0 0 0 0 \n SINCE SEP 1 0 0 0 0 \n SINCE JUL 1 0 0 0 0 \n\n COOLING \n TODAY 19 15 4 18 \n MONTH TO DATE 367 303 64 312 \n SINCE SEP 1 367 303 64 312 \n SINCE JAN 1 3287 2788 499 3317 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90) \n HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90) \n AVERAGE WIND SPEED 5.3 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 100 \n LOWEST 35 \n AVERAGE 68 \n\n..........................................................\n\n\nTHE HOUSTON INTERCONTINENTAL CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 90 98 2024 \n MINIMUM TEMPERATURE (F) 70 51 1981 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 18 2026.....SUNRISE 7:08 AM CDT SUNSET 7:23 PM CDT \nSEPTEMBER 19 2026.....SUNRISE 7:08 AM CDT SUNSET 7:22 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":"2026-09-19T06:24:00.000Z","issuedLocal":"124 AM CDT SAT SEP 19 2026","office":"KHGX","wmoHeader":"CDUS44 KHGX 190624","productId":"iem:CDUS44-KHGX-190624:IAH:2026-09-18:final","source":"iem-afos","corrected":false,"tmaxF":94,"tmaxTimeLocal":"3:13 PM","tminF":72,"tminTimeLocal":"11:42 PM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIIAH&e=202609190624","parseProblems":[],"rawTextSha256":"e0d36d48ddb337318ede99658b126a5e4720a6da2351f77ed5fe7b6586c48cb4","rawText":"CDUS44 KHGX 190624\nCLIIAH\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX\n124 AM CDT SAT SEP 19 2026\n\n...................................\n\n...THE HOUSTON INTERCONTINENTAL CLIMATE SUMMARY FOR SEPTEMBER 18 2026...\n\nCLIMATE NORMAL PERIOD: 1991 TO 2020\nCLIMATE RECORD PERIOD: 1889 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 94 3:13 PM 99 1927 90 4 93 \n MINIMUM 72 11:42 PM 54 1903 70 2 72 \n 1981 \n 2000 \n AVERAGE 83 80 3 83 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 2.53 1908 0.15 -0.15 0.00 \n MONTH TO DATE 0.91 3.02 -2.11 0.78 \n SINCE SEP 1 0.91 3.02 -2.11 0.78 \n SINCE JAN 1 35.25 36.79 -1.54 29.68 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 \n MONTH TO DATE 0.0 \n SINCE SEP 1 0.0 \n SINCE JUL 1 0.0 \n\nDEGREE DAYS \n HEATING \n YESTERDAY 0 0 0 0 \n MONTH TO DATE 0 0 0 0 \n SINCE SEP 1 0 0 0 0 \n SINCE JUL 1 0 0 0 0 \n\n COOLING \n YESTERDAY 18 15 3 18 \n MONTH TO DATE 366 303 63 312 \n SINCE SEP 1 366 303 63 312 \n SINCE JAN 1 3286 2788 498 3317 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90) \n HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90) \n AVERAGE WIND SPEED 5.9 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 100 \n LOWEST 35 \n AVERAGE 68 \n\n..........................................................\n\n\nTHE HOUSTON INTERCONTINENTAL CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 90 98 2024 \n MINIMUM TEMPERATURE (F) 70 51 1981 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 19 2026.....SUNRISE 7:08 AM CDT SUNSET 7:22 PM CDT \nSEPTEMBER 20 2026.....SUNRISE 7:09 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$$"}],"html":"https://weathermarket.io/nws-cli/KIAH/2026-09-18","json":"https://weathermarket.io/api/nws-cli/KIAH/2026-09-18"},"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/KIAH/YYYY-MM-DD (HTML) and https://weathermarket.io/api/nws-cli/KIAH/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the final NWS Climatological Report (CLI) for station KIAH for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KIAH/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."}}