{"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":"2026-11-13","day":{"date":"2026-10-10","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":58,"tminF":45,"precipIn":0.05,"precipTrace":false,"tmax":14.44,"tmin":7.22,"precip":1.27,"issuedAt":"2026-10-11T08:26:00.000Z","productId":"iem:CDUS46-KSEW-110826:SEA:2026-10-10:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLISEA&e=202610110826"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-10-11T01:19:00.000Z","issuedLocal":"619 PM PDT SAT OCT 10 2026","office":"KSEW","wmoHeader":"CDUS46 KSEW 110119","productId":"iem:CDUS46-KSEW-110119:SEA:2026-10-10:interim","source":"iem-afos","corrected":false,"tmaxF":58,"tmaxTimeLocal":"245 PM","tminF":47,"tminTimeLocal":"622 AM","precipIn":0,"precipTrace":true,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLISEA&e=202610110119","parseProblems":[],"rawTextSha256":"ed61a4dfb54f086ea9dcc659834acb1c7e18605f6cf9b642e94498359e22b76d","rawText":"CDUS46 KSEW 110119\nCLISEA\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE SEATTLE\n619 PM PDT SAT OCT 10 2026\n\n...................................\n\n...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 10 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 58 245 PM 77 1987 63 -5 61 \n MINIMUM 47 622 AM 34 1946 48 -1 51 \n 2019 \n AVERAGE 53 55 -2 56 \n\nPRECIPITATION (IN) \n TODAY T 1.13 2015 0.10 -0.10 0.03 \n MONTH TO DATE 0.01 0.93 -0.92 0.37 \n SINCE OCT 1 0.01 0.93 -0.92 0.37 \n SINCE JAN 1 21.60 24.33 -2.73 16.64 \n\nSNOWFALL (IN) \n TODAY 0.0 MM MM 0.0 \n MONTH TO DATE 0.0 0.0 \n SINCE OCT 1 0.0 0.0 \n SINCE JUL 1 0.0 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n TODAY 12 10 2 9 \n MONTH TO DATE 62 82 -20 66 \n SINCE SEP 1 195 184 11 117 \n SINCE JUL 1 220 239 -19 141 \n\n COOLING \n TODAY 0 0 0 0 \n MONTH TO DATE 0 0 0 0 \n SINCE SEP 1 2 30 -28 34 \n SINCE JAN 1 267 263 4 328 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (170) \n HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (360) \n HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (10) \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 TODAY. \n LIGHT RAIN \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 89 200 AM \n LOWEST 55 400 PM \n AVERAGE 72 \n\n..........................................................\n\n\nTHE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 62 83 1991 \n MINIMUM TEMPERATURE (F) 48 36 1946 \n\n\nSUNRISE AND SUNSET \nOCTOBER 10 2026.......SUNRISE 721 AM PDT SUNSET 630 PM PDT \nOCTOBER 11 2026.......SUNRISE 722 AM PDT SUNSET 629 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":"2026-10-11T08:26:00.000Z","issuedLocal":"126 AM PDT SUN OCT 11 2026","office":"KSEW","wmoHeader":"CDUS46 KSEW 110826","productId":"iem:CDUS46-KSEW-110826:SEA:2026-10-10:final","source":"iem-afos","corrected":false,"tmaxF":58,"tmaxTimeLocal":"245 PM","tminF":45,"tminTimeLocal":"1127 PM","precipIn":0.05,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLISEA&e=202610110826","parseProblems":[],"rawTextSha256":"3832a07a98cf7ee754ac4806a36a680a2ebff0038eb41fd55dc5be8c9ada6d2b","rawText":"CDUS46 KSEW 110826\nCLISEA\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE SEATTLE\n126 AM PDT SUN OCT 11 2026\n\n...................................\n\n...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 10 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 58 245 PM 77 1987 63 -5 61 \n MINIMUM 45 1127 PM 34 1946 48 -3 51 \n 2019 \n AVERAGE 52 55 -3 56 \n\nPRECIPITATION (IN) \n YESTERDAY 0.05 1.13 2015 0.10 -0.05 0.03 \n MONTH TO DATE 0.06 0.93 -0.87 0.37 \n SINCE OCT 1 0.06 0.93 -0.87 0.37 \n SINCE JAN 1 21.65 24.33 -2.68 16.64 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 MM MM 0.0 \n MONTH TO DATE 0.0 0.0 \n SINCE OCT 1 0.0 0.0 \n SINCE JUL 1 0.0 0.0 \n SNOW DEPTH 0 \n\nDEGREE DAYS \n HEATING \n YESTERDAY 13 10 3 9 \n MONTH TO DATE 63 82 -19 66 \n SINCE SEP 1 196 184 12 117 \n SINCE JUL 1 221 239 -18 141 \n\n COOLING \n YESTERDAY 0 0 0 0 \n MONTH TO DATE 0 0 0 0 \n SINCE SEP 1 2 30 -28 34 \n SINCE JAN 1 267 263 4 328 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (50) \n HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (360) \n HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (10) \n AVERAGE WIND SPEED 6.2 \n\n\nSKY COVER \n AVERAGE SKY COVER 0.7 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n LIGHT RAIN \n FOG \n HAZE \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 89 200 AM \n LOWEST 55 400 PM \n AVERAGE 72 \n\n..........................................................\n\n\nTHE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 62 83 1991 \n MINIMUM TEMPERATURE (F) 48 36 1946 \n\n\nSUNRISE AND SUNSET \nOCTOBER 11 2026.......SUNRISE 722 AM PDT SUNSET 629 PM PDT \nOCTOBER 12 2026.......SUNRISE 724 AM PDT SUNSET 627 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/2026-10-10","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-10-10"},"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."}}