{"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":"2026-09-29","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":66,"tminF":56,"precipIn":0,"precipTrace":true,"tmax":18.89,"tmin":13.33,"precip":0,"issuedAt":"2026-09-30T05:33:00.000Z","productId":"iem:CDUS41-KBOX-300533:BOS:2026-09-29:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609300533"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-09-29T22:18:00.000Z","issuedLocal":"618 PM EDT TUE SEP 29 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 292218","productId":"iem:CDUS41-KBOX-292218:BOS:2026-09-29:interim","source":"iem-afos","corrected":false,"tmaxF":66,"tmaxTimeLocal":"357 PM","tminF":56,"tminTimeLocal":"424 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609292218","parseProblems":[],"rawTextSha256":"f57b45a97663a48048933935b80909d1c3ee373c92f7a622d2aec52e66bfbe83","rawText":"CDUS41 KBOX 292218\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n618 PM EDT TUE SEP 29 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 29 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 66 357 PM 88 1952 68 -2 78 \n MINIMUM 56 424 AM 34 1914 53 3 63 \n AVERAGE 61 61 0 71 \n\nPRECIPITATION (IN) \n TODAY 0.00 2.83 1907 0.13 -0.13 0.00 \n MONTH TO DATE 5.34 3.43 1.91 3.09 \n SINCE SEP 1 5.34 3.43 1.91 3.09 \n SINCE JAN 1 22.90 31.47 -8.57 28.04 \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 4 5 -1 0 \n MONTH TO DATE 81 65 16 32 \n SINCE SEP 1 81 65 16 32 \n SINCE JUL 1 81 74 7 39 \n\n COOLING \n TODAY 0 1 -1 6 \n MONTH TO DATE 77 90 -13 85 \n SINCE SEP 1 77 90 -13 85 \n SINCE JAN 1 994 790 204 842 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310) \n HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (310) \n AVERAGE WIND SPEED 8.9 \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 FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 97 1200 AM \n LOWEST 73 100 PM \n AVERAGE 85 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 68 87 1986 \n MINIMUM TEMPERATURE (F) 53 36 1888 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 29 2026.....SUNRISE 639 AM EDT SUNSET 629 PM EDT \nSEPTEMBER 30 2026.....SUNRISE 640 AM EDT SUNSET 627 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":"2026-09-30T05:33:00.000Z","issuedLocal":"133 AM EDT WED SEP 30 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 300533","productId":"iem:CDUS41-KBOX-300533:BOS:2026-09-29:final","source":"iem-afos","corrected":false,"tmaxF":66,"tmaxTimeLocal":null,"tminF":56,"tminTimeLocal":null,"precipIn":0,"precipTrace":true,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609300533","parseProblems":[],"rawTextSha256":"672febc6eca8e2aaa57c3278194f0864b024e07ed48d05158236f822e6662a3c","rawText":"CDUS41 KBOX 300533\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n133 AM EDT WED SEP 30 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 29 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 66 MM 88 1952 68 -2 78 \n MINIMUM 56 MM 34 1914 53 3 63 \n AVERAGE 61 61 0 71 \n\nPRECIPITATION (IN) \n YESTERDAY T 2.83 1907 0.13 -0.13 0.00 \n MONTH TO DATE 5.34 3.43 1.91 3.09 \n SINCE SEP 1 5.34 3.43 1.91 3.09 \n SINCE JAN 1 22.90 31.47 -8.57 28.04 \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 4 5 -1 0 \n MONTH TO DATE 81 65 16 32 \n SINCE SEP 1 81 65 16 32 \n SINCE JUL 1 81 74 7 39 \n\n COOLING \n YESTERDAY 0 1 -1 6 \n MONTH TO DATE 77 90 -13 85 \n SINCE SEP 1 77 90 -13 85 \n SINCE JAN 1 994 790 204 842 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION NW (310) \n HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (320) \n HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM \n AVERAGE WIND SPEED 7.7 \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 LIGHT RAIN \n FOG \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 97 1000 PM \n LOWEST 73 100 PM \n AVERAGE 85 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 68 87 1986 \n MINIMUM TEMPERATURE (F) 53 36 1888 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 30 2026.....SUNRISE 640 AM EDT SUNSET 627 PM EDT \nOCTOBER 1 2026.......SUNRISE 641 AM EDT SUNSET 626 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/2026-09-29","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-29"},"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."}}