{"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":"2026-09-04","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":85,"tminF":66,"precipIn":0,"precipTrace":false,"tmax":29.44,"tmin":18.89,"precip":0,"issuedAt":"2026-09-05T05:27:00.000Z","productId":"iem:CDUS41-KBOX-050527:BOS:2026-09-04:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609050527"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-09-04T21:54:00.000Z","issuedLocal":"554 PM EDT FRI SEP 04 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 042154","productId":"iem:CDUS41-KBOX-042154:BOS:2026-09-04:interim","source":"iem-afos","corrected":false,"tmaxF":85,"tmaxTimeLocal":"1247 PM","tminF":66,"tminTimeLocal":"640 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609042154","parseProblems":[],"rawTextSha256":"9d4dbf5d8db709a9685f7711fed750c37c1edc393401549dba525c8a766bdfb3","rawText":"CDUS41 KBOX 042154\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n554 PM EDT FRI SEP 04 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 4 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 85 1247 PM 94 1884 77 8 79 \n 1973 \n MINIMUM 66 640 AM 43 1872 62 4 58 \n AVERAGE 76 69 7 69 \n\nPRECIPITATION (IN) \n TODAY 0.00 1.73 1905 0.11 -0.11 0.00 \n MONTH TO DATE 0.72 0.43 0.29 0.00 \n SINCE SEP 1 0.72 0.43 0.29 0.00 \n SINCE JAN 1 18.28 28.47 -10.19 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 1 -1 0 \n MONTH TO DATE 0 2 -2 0 \n SINCE SEP 1 0 2 -2 0 \n SINCE JUL 1 0 11 -11 7 \n\n COOLING \n TODAY 11 5 6 4 \n MONTH TO DATE 18 22 -4 10 \n SINCE SEP 1 18 22 -4 10 \n SINCE JAN 1 935 722 213 767 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70) \n HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (320) \n AVERAGE WIND SPEED 5.8 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.6 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n FOG \n FOG W/VISIBILITY <= 1/4 MILE \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 100 300 AM \n LOWEST 58 1000 AM \n AVERAGE 79 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 77 93 1880 \n MINIMUM TEMPERATURE (F) 62 48 1872 \n 1896 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 4 2026.....SUNRISE 612 AM EDT SUNSET 713 PM EDT \nSEPTEMBER 5 2026.....SUNRISE 614 AM EDT SUNSET 711 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":"2026-09-05T05:27:00.000Z","issuedLocal":"127 AM EDT SAT SEP 05 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 050527","productId":"iem:CDUS41-KBOX-050527:BOS:2026-09-04:final","source":"iem-afos","corrected":false,"tmaxF":85,"tmaxTimeLocal":"1247 PM","tminF":66,"tminTimeLocal":"640 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609050527","parseProblems":[],"rawTextSha256":"089716ef4cb1950082cc406c9955aa05fe88a7c02fbe4053b30ebffd07afbad0","rawText":"CDUS41 KBOX 050527\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n127 AM EDT SAT SEP 05 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 4 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 85 1247 PM 94 1884 77 8 79 \n 1973 \n MINIMUM 66 640 AM 43 1872 62 4 58 \n AVERAGE 76 69 7 69 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 1.73 1905 0.11 -0.11 0.00 \n MONTH TO DATE 0.72 0.43 0.29 0.00 \n SINCE SEP 1 0.72 0.43 0.29 0.00 \n SINCE JAN 1 18.28 28.47 -10.19 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 1 -1 0 \n MONTH TO DATE 0 2 -2 0 \n SINCE SEP 1 0 2 -2 0 \n SINCE JUL 1 0 11 -11 7 \n\n COOLING \n YESTERDAY 11 5 6 4 \n MONTH TO DATE 18 22 -4 10 \n SINCE SEP 1 18 22 -4 10 \n SINCE JAN 1 935 722 213 767 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (50) \n HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (300) \n HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300) \n AVERAGE WIND SPEED 6.4 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.6 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n FOG \n FOG W/VISIBILITY <= 1/4 MILE \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 100 300 AM \n LOWEST 54 900 PM \n AVERAGE 77 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 77 93 1880 \n MINIMUM TEMPERATURE (F) 62 48 1872 \n 1896 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 5 2026.....SUNRISE 614 AM EDT SUNSET 711 PM EDT \nSEPTEMBER 6 2026.....SUNRISE 615 AM EDT SUNSET 709 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/2026-09-04","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-04"},"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."}}