{"station":{"icao":"KBOS","cliId":"BOS","pil":"CLIBOS","city":{"slug":"boston","name":"보스턴","country":"United States"},"timezone":"America/New_York","feed":"https://api.weather.gov/products/types/CLI/locations/BOS","html":"https://weathermarket.io/nws-cli/KBOS","json":"https://weathermarket.io/api/nws-cli/KBOS"},"stationToday":"2026-11-14","day":{"date":"2026-09-27","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":60,"tminF":56,"precipIn":1.5,"precipTrace":false,"tmax":15.56,"tmin":13.33,"precip":38.1,"issuedAt":"2026-09-28T05:26:00.000Z","productId":"iem:CDUS41-KBOX-280526:BOS:2026-09-27:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609280526"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-09-27T21:42:00.000Z","issuedLocal":"542 PM EDT SUN SEP 27 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 272142","productId":"iem:CDUS41-KBOX-272142:BOS:2026-09-27:interim","source":"iem-afos","corrected":false,"tmaxF":60,"tmaxTimeLocal":"359 PM","tminF":58,"tminTimeLocal":"718 AM","precipIn":1.31,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609272142","parseProblems":[],"rawTextSha256":"794af39861887e7900375f7672abf41a5a03afa0a765a477b3b62427858f916a","rawText":"CDUS41 KBOX 272142\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n542 PM EDT SUN SEP 27 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 27 2026...\nVALID TODAY AS OF 0500 PM LOCAL TIME.\n\nCLIMATE NORMAL PERIOD 1991 TO 2020\nCLIMATE RECORD PERIOD 1872 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 60 359 PM 86 1933 69 -9 76 \n 1998 \n 2017 \n MINIMUM 58 718 AM 37 1947 54 4 64 \n AVERAGE 59 62 -3 70 \n\nPRECIPITATION (IN) \n TODAY 1.31 2.37 1962 0.13 1.18 0.00 \n MONTH TO DATE 4.15 3.17 0.98 3.08 \n SINCE SEP 1 4.15 3.17 0.98 3.08 \n SINCE JAN 1 21.71 31.21 -9.50 28.03 \n\nSNOWFALL (IN) \n TODAY 0.0 0.0 2000 0.0 0.0 0.0 \n 2001 \n 2002 \n MONTH TO DATE 0.0 0.0 0.0 0.0 \n SINCE SEP 1 0.0 0.0 0.0 0.0 \n SINCE JUL 1 0.0 0.0 0.0 0.0 \n\nDEGREE DAYS \n HEATING \n TODAY 6 5 1 0 \n MONTH TO DATE 68 55 13 32 \n SINCE SEP 1 68 55 13 32 \n SINCE JUL 1 68 64 4 39 \n\n COOLING \n TODAY 0 1 -1 5 \n MONTH TO DATE 77 88 -11 69 \n SINCE SEP 1 77 88 -11 69 \n SINCE JAN 1 994 788 206 826 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION NE (40) \n HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NE (50) \n AVERAGE WIND SPEED 26.7 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 1.0 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n HEAVY RAIN \n RAIN \n LIGHT RAIN \n FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 97 100 AM \n LOWEST 93 1200 AM \n AVERAGE 95 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 69 90 1873 \n 1881 \n MINIMUM TEMPERATURE (F) 54 37 1947 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 27 2026.....SUNRISE 637 AM EDT SUNSET 633 PM EDT \nSEPTEMBER 28 2026.....SUNRISE 638 AM EDT SUNSET 631 PM EDT \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":"2026-09-28T05:26:00.000Z","issuedLocal":"126 AM EDT MON SEP 28 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 280526","productId":"iem:CDUS41-KBOX-280526:BOS:2026-09-27:final","source":"iem-afos","corrected":false,"tmaxF":60,"tmaxTimeLocal":"659 PM","tminF":56,"tminTimeLocal":"1159 PM","precipIn":1.5,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609280526","parseProblems":[],"rawTextSha256":"fbf9421c0abae1be77275cd84ab7f62d69c439160ab2a0ac58e6b31c025e53c2","rawText":"CDUS41 KBOX 280526\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n126 AM EDT MON SEP 28 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 27 2026...\n\nCLIMATE NORMAL PERIOD 1991 TO 2020\nCLIMATE RECORD PERIOD 1872 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 60 659 PM 86 1933 69 -9 76 \n 1998 \n 2017 \n MINIMUM 56 1159 PM 37 1947 54 2 64 \n AVERAGE 58 62 -4 70 \n\nPRECIPITATION (IN) \n YESTERDAY 1.50 2.37 1962 0.13 1.37 0.00 \n MONTH TO DATE 4.34 3.17 1.17 3.08 \n SINCE SEP 1 4.34 3.17 1.17 3.08 \n SINCE JAN 1 21.90 31.21 -9.31 28.03 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0 \n 2001 \n 2002 \n MONTH TO DATE 0.0 0.0 0.0 0.0 \n SINCE SEP 1 0.0 0.0 0.0 0.0 \n SINCE JUL 1 0.0 0.0 0.0 0.0 \n\nDEGREE DAYS \n HEATING \n YESTERDAY 7 5 2 0 \n MONTH TO DATE 69 55 14 32 \n SINCE SEP 1 69 55 14 32 \n SINCE JUL 1 69 64 5 39 \n\n COOLING \n YESTERDAY 0 1 -1 5 \n MONTH TO DATE 77 88 -11 69 \n SINCE SEP 1 77 88 -11 69 \n SINCE JAN 1 994 788 206 826 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 25 RESULTANT WIND DIRECTION NE (30) \n HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION NE (40) \n HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NE (50) \n AVERAGE WIND SPEED 25.4 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 1.0 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n HEAVY RAIN \n RAIN \n LIGHT RAIN \n FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 97 100 AM \n LOWEST 93 1200 AM \n AVERAGE 95 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 69 90 1873 \n 1881 \n MINIMUM TEMPERATURE (F) 54 37 1947 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 28 2026.....SUNRISE 638 AM EDT SUNSET 631 PM EDT \nSEPTEMBER 29 2026.....SUNRISE 639 AM EDT SUNSET 629 PM EDT \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/KBOS/2026-09-27","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-27"},"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/KBOS/YYYY-MM-DD (HTML) and https://weathermarket.io/api/nws-cli/KBOS/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the final NWS Climatological Report (CLI) for station KBOS for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KBOS/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."}}