{"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":"2026-09-01","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":69,"tminF":63,"precipIn":0.26,"precipTrace":false,"tmax":20.56,"tmin":17.22,"precip":6.6,"issuedAt":"2026-09-02T05:29:00.000Z","productId":"iem:CDUS41-KBOX-020529:BOS:2026-09-01:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609020529"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-09-01T21:23:00.000Z","issuedLocal":"523 PM EDT TUE SEP 01 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 012123","productId":"iem:CDUS41-KBOX-012123:BOS:2026-09-01:interim","source":"iem-afos","corrected":false,"tmaxF":69,"tmaxTimeLocal":"1058 AM","tminF":65,"tminTimeLocal":"359 PM","precipIn":0.26,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609012123","parseProblems":[],"rawTextSha256":"28a481b7736e27ad07c362fe108dac8dea93bf7409668893adab4d95c5cfe445","rawText":"CDUS41 KBOX 012123\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n523 PM EDT TUE SEP 01 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 1 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 69 1058 AM 96 1881 78 -9 73 \n MINIMUM 65 359 PM 50 1887 63 2 60 \n AVERAGE 67 70 -3 67 \n\nPRECIPITATION (IN) \n TODAY 0.26 2.11 1949 0.11 0.15 0.00 \n MONTH TO DATE 0.26 0.11 0.15 0.00 \n SINCE SEP 1 0.26 0.11 0.15 0.00 \n SINCE JAN 1 17.82 28.15 -10.33 24.95 \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 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 9 -9 7 \n\n COOLING \n TODAY 2 6 -4 2 \n MONTH TO DATE 2 6 -4 2 \n SINCE SEP 1 2 6 -4 2 \n SINCE JAN 1 919 706 213 759 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (90) \n HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (90) \n AVERAGE WIND SPEED 7.4 \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 96 100 PM \n LOWEST 73 1200 AM \n AVERAGE 85 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 78 100 1953 \n MINIMUM TEMPERATURE (F) 62 49 1896 \n 1967 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 1 2026.....SUNRISE 609 AM EDT SUNSET 718 PM EDT \nSEPTEMBER 2 2026.....SUNRISE 610 AM EDT SUNSET 716 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":"2026-09-02T05:29:00.000Z","issuedLocal":"129 AM EDT WED SEP 02 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 020529","productId":"iem:CDUS41-KBOX-020529:BOS:2026-09-01:final","source":"iem-afos","corrected":false,"tmaxF":69,"tmaxTimeLocal":"1058 AM","tminF":63,"tminTimeLocal":"1139 PM","precipIn":0.26,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609020529","parseProblems":[],"rawTextSha256":"5c59d2245f6a257d78876386840e827c7712f763c43d4911113df1ccbaad7eaa","rawText":"CDUS41 KBOX 020529\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n129 AM EDT WED SEP 02 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 1 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 69 1058 AM 96 1881 78 -9 73 \n MINIMUM 63 1139 PM 50 1887 63 0 60 \n AVERAGE 66 70 -4 67 \n\nPRECIPITATION (IN) \n YESTERDAY 0.26 2.11 1949 0.11 0.15 0.00 \n MONTH TO DATE 0.26 0.11 0.15 0.00 \n SINCE SEP 1 0.26 0.11 0.15 0.00 \n SINCE JAN 1 17.82 28.15 -10.33 24.95 \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 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 9 -9 7 \n\n COOLING \n YESTERDAY 1 6 -5 2 \n MONTH TO DATE 1 6 -5 2 \n SINCE SEP 1 1 6 -5 2 \n SINCE JAN 1 918 706 212 759 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (130) \n HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (90) \n HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (90) \n AVERAGE WIND SPEED 5.6 \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 96 100 PM \n LOWEST 68 1000 PM \n AVERAGE 82 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 78 100 1953 \n MINIMUM TEMPERATURE (F) 62 49 1896 \n 1967 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 2 2026.....SUNRISE 610 AM EDT SUNSET 716 PM EDT \nSEPTEMBER 3 2026.....SUNRISE 611 AM EDT SUNSET 715 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/2026-09-01","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-01"},"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."}}