{"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":"2026-09-23","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":64,"tminF":51,"precipIn":0,"precipTrace":false,"tmax":17.78,"tmin":10.56,"precip":0,"issuedAt":"2026-09-24T05:25:00.000Z","productId":"iem:CDUS41-KBOX-240525:BOS:2026-09-23:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609240525"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-09-23T21:29:00.000Z","issuedLocal":"529 PM EDT WED SEP 23 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 232129","productId":"iem:CDUS41-KBOX-232129:BOS:2026-09-23:interim","source":"iem-afos","corrected":false,"tmaxF":64,"tmaxTimeLocal":"105 PM","tminF":51,"tminTimeLocal":"433 AM","precipIn":0,"precipTrace":false,"snowIn":null,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609232129","parseProblems":[],"rawTextSha256":"ee0f9335705475be0bef2ec8d6477fc7c25446ab35da95d60702b16203ebc8da","rawText":"CDUS41 KBOX 232129\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n529 PM EDT WED SEP 23 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 23 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 64 105 PM 96 1895 71 -7 80 \n MINIMUM 51 433 AM 35 1875 56 -5 60 \n 1904 \n AVERAGE 58 63 -5 70 \n\nPRECIPITATION (IN) \n TODAY 0.00 2.64 1994 0.12 -0.12 0.00 \n MONTH TO DATE 1.81 2.66 -0.85 1.55 \n SINCE SEP 1 1.81 2.66 -0.85 1.55 \n SINCE JAN 1 19.37 30.70 -11.33 26.50 \n\nSNOWFALL (IN) \n TODAY MM 0.0 2000 0.0 MM 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 7 4 3 0 \n MONTH TO DATE 39 38 1 32 \n SINCE SEP 1 39 38 1 32 \n SINCE JUL 1 39 47 -8 39 \n\n COOLING \n TODAY 0 2 -2 5 \n MONTH TO DATE 77 82 -5 50 \n SINCE SEP 1 77 82 -5 50 \n SINCE JAN 1 994 782 212 807 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (60) \n HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NE (50) \n AVERAGE WIND SPEED 16.2 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.4 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 86 400 AM \n LOWEST 54 1100 AM \n AVERAGE 70 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 70 90 1959 \n MINIMUM TEMPERATURE (F) 55 39 1885 \n 1963 \n 1974 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 23 2026.....SUNRISE 633 AM EDT SUNSET 640 PM EDT \nSEPTEMBER 24 2026.....SUNRISE 634 AM EDT SUNSET 638 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":"2026-09-24T05:25:00.000Z","issuedLocal":"125 AM EDT THU SEP 24 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 240525","productId":"iem:CDUS41-KBOX-240525:BOS:2026-09-23:final","source":"iem-afos","corrected":false,"tmaxF":64,"tmaxTimeLocal":"105 PM","tminF":51,"tminTimeLocal":"433 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609240525","parseProblems":[],"rawTextSha256":"fd33ef7d0ae58c039f11e9e29209c502347a9d616dbe14ac0b982894ad290fcf","rawText":"CDUS41 KBOX 240525\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n125 AM EDT THU SEP 24 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 23 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 64 105 PM 96 1895 71 -7 80 \n MINIMUM 51 433 AM 35 1875 56 -5 60 \n 1904 \n AVERAGE 58 63 -5 70 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 2.64 1994 0.12 -0.12 0.00 \n MONTH TO DATE 1.81 2.66 -0.85 1.55 \n SINCE SEP 1 1.81 2.66 -0.85 1.55 \n SINCE JAN 1 19.37 30.70 -11.33 26.50 \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 4 3 0 \n MONTH TO DATE 39 38 1 32 \n SINCE SEP 1 39 38 1 32 \n SINCE JUL 1 39 47 -8 39 \n\n COOLING \n YESTERDAY 0 2 -2 5 \n MONTH TO DATE 77 82 -5 50 \n SINCE SEP 1 77 82 -5 50 \n SINCE JAN 1 994 782 212 807 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION NE (40) \n HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (60) \n HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NE (50) \n AVERAGE WIND SPEED 16.5 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.3 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 86 400 AM \n LOWEST 54 1100 AM \n AVERAGE 70 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 70 90 1959 \n MINIMUM TEMPERATURE (F) 55 39 1885 \n 1963 \n 1974 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 24 2026.....SUNRISE 634 AM EDT SUNSET 638 PM EDT \nSEPTEMBER 25 2026.....SUNRISE 635 AM EDT SUNSET 636 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/2026-09-23","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-23"},"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."}}