{"station":{"icao":"KSEA","cliId":"SEA","pil":"CLISEA","city":{"slug":"seattle","name":"시애틀","country":"United States"},"timezone":"America/Los_Angeles","feed":"https://api.weather.gov/products/types/CLI/locations/SEA","html":"https://weathermarket.io/nws-cli/KSEA","json":"https://weathermarket.io/api/nws-cli/KSEA"},"stationToday":"2026-11-14","day":{"date":"2026-09-14","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":67,"tminF":54,"precipIn":0,"precipTrace":false,"tmax":19.44,"tmin":12.22,"precip":0,"issuedAt":"2026-09-15T08:26:00.000Z","productId":"iem:CDUS46-KSEW-150826:SEA:2026-09-14:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLISEA&e=202609150826"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-09-15T01:28:00.000Z","issuedLocal":"628 PM PDT MON SEP 14 2026","office":"KSEW","wmoHeader":"CDUS46 KSEW 150128","productId":"iem:CDUS46-KSEW-150128:SEA:2026-09-14:interim","source":"iem-afos","corrected":false,"tmaxF":67,"tmaxTimeLocal":"217 PM","tminF":54,"tminTimeLocal":"422 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLISEA&e=202609150128","parseProblems":[],"rawTextSha256":"25b0c51339660c05a2197f7a6716cadbb13e399c7331e0ec4d0994bf854699d0","rawText":"CDUS46 KSEW 150128\nCLISEA\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE SEATTLE\n628 PM PDT MON SEP 14 2026\n\n...................................\n\n...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 2026...\nVALID TODAY AS OF 0500 PM LOCAL TIME.\n\nCLIMATE NORMAL PERIOD 1991 TO 2020\nCLIMATE RECORD PERIOD 1945 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 67 217 PM 93 1979 72 -5 68 \n MINIMUM 54 422 AM 46 1947 54 0 57 \n 1955 \n 1986 \n AVERAGE 61 63 -2 63 \n\nPRECIPITATION (IN) \n TODAY 0.00 0.73 1949 0.05 -0.05 T \n MONTH TO DATE 1.02 0.64 0.38 0.06 \n SINCE OCT 1 37.93 38.37 -0.44 28.97 \n SINCE JAN 1 21.15 22.43 -1.28 15.57 \n\nSNOWFALL (IN) \n TODAY 0.0 MM MM 0.0 \n MONTH TO DATE 0.0 0.0 \n SINCE OCT 1 3.0 2.3 \n SINCE JUL 1 0.0 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n TODAY 4 3 1 2 \n MONTH TO DATE 41 30 11 7 \n SINCE SEP 1 41 30 11 7 \n SINCE JUL 1 66 85 -19 31 \n\n COOLING \n TODAY 0 1 -1 0 \n MONTH TO DATE 1 23 -22 22 \n SINCE SEP 1 1 23 -22 22 \n SINCE JAN 1 266 256 10 316 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (180) \n HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (180) \n HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (270) \n AVERAGE WIND SPEED 7.3 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.8 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 89 500 AM \n LOWEST 50 400 PM \n AVERAGE 70 \n\n..........................................................\n\n\nTHE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 72 93 1967 \n MINIMUM TEMPERATURE (F) 54 42 1952 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 14 2026.....SUNRISE 646 AM PDT SUNSET 723 PM PDT \nSEPTEMBER 15 2026.....SUNRISE 647 AM PDT SUNSET 721 PM PDT \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":"2026-09-15T08:26:00.000Z","issuedLocal":"126 AM PDT TUE SEP 15 2026","office":"KSEW","wmoHeader":"CDUS46 KSEW 150826","productId":"iem:CDUS46-KSEW-150826:SEA:2026-09-14:final","source":"iem-afos","corrected":false,"tmaxF":67,"tmaxTimeLocal":"217 PM","tminF":54,"tminTimeLocal":"422 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLISEA&e=202609150826","parseProblems":[],"rawTextSha256":"f51b488c4fdd4615f0327c86d21dcd055ba9c7a1ffbbaa0c1cfac26ce4d1597a","rawText":"CDUS46 KSEW 150826\nCLISEA\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE SEATTLE\n126 AM PDT TUE SEP 15 2026\n\n...................................\n\n...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 2026...\n\nCLIMATE NORMAL PERIOD 1991 TO 2020\nCLIMATE RECORD PERIOD 1945 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 67 217 PM 93 1979 72 -5 68 \n MINIMUM 54 422 AM 46 1947 54 0 57 \n 1955 \n 1986 \n AVERAGE 61 63 -2 63 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 0.73 1949 0.05 -0.05 T \n MONTH TO DATE 1.02 0.64 0.38 0.06 \n SINCE OCT 1 37.93 38.37 -0.44 28.97 \n SINCE JAN 1 21.15 22.43 -1.28 15.57 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 MM MM 0.0 \n MONTH TO DATE 0.0 0.0 \n SINCE OCT 1 3.0 2.3 \n SINCE JUL 1 0.0 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n YESTERDAY 4 3 1 2 \n MONTH TO DATE 41 30 11 7 \n SINCE SEP 1 41 30 11 7 \n SINCE JUL 1 66 85 -19 31 \n\n COOLING \n YESTERDAY 0 1 -1 0 \n MONTH TO DATE 1 23 -22 22 \n SINCE SEP 1 1 23 -22 22 \n SINCE JAN 1 266 256 10 316 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (190) \n HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (180) \n HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (270) \n AVERAGE WIND SPEED 5.9 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.8 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 89 500 AM \n LOWEST 50 400 PM \n AVERAGE 70 \n\n..........................................................\n\n\nTHE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 72 93 1967 \n MINIMUM TEMPERATURE (F) 54 42 1952 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 15 2026.....SUNRISE 647 AM PDT SUNSET 721 PM PDT \nSEPTEMBER 16 2026.....SUNRISE 648 AM PDT SUNSET 719 PM PDT \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/KSEA/2026-09-14","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-09-14"},"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/KSEA/YYYY-MM-DD (HTML) and https://weathermarket.io/api/nws-cli/KSEA/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the final NWS Climatological Report (CLI) for station KSEA for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KSEA/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."}}