{"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":"2026-09-19","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":62,"tminF":54,"precipIn":0,"precipTrace":false,"tmax":16.67,"tmin":12.22,"precip":0,"issuedAt":"2026-09-20T10:22:00.000Z","productId":"iem:CDUS41-KBOX-201022:BOS:2026-09-19:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609201022"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-09-19T21:37:00.000Z","issuedLocal":"537 PM EDT SAT SEP 19 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 192137","productId":"iem:CDUS41-KBOX-192137:BOS:2026-09-19:interim","source":"iem-afos","corrected":false,"tmaxF":62,"tmaxTimeLocal":"215 PM","tminF":55,"tminTimeLocal":"626 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609192137","parseProblems":[],"rawTextSha256":"d96aade7796237ed84172c822998ecca06035ff2880d3d4e0c3ded0a882e19f5","rawText":"CDUS41 KBOX 192137\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n537 PM EDT SAT SEP 19 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 19 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 62 215 PM 92 1983 72 -10 82 \n MINIMUM 55 626 AM 42 1929 57 -2 61 \n AVERAGE 59 65 -6 72 \n\nPRECIPITATION (IN) \n TODAY 0.00 1.21 1936 0.12 -0.12 0.00 \n MONTH TO DATE 1.70 2.15 -0.45 1.55 \n SINCE SEP 1 1.70 2.15 -0.45 1.55 \n SINCE JAN 1 19.26 30.19 -10.93 26.50 \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 3 3 0 \n MONTH TO DATE 13 25 -12 18 \n SINCE SEP 1 13 25 -12 18 \n SINCE JUL 1 13 34 -21 25 \n\n COOLING \n TODAY 0 2 -2 7 \n MONTH TO DATE 77 74 3 45 \n SINCE SEP 1 77 74 3 45 \n SINCE JAN 1 994 774 220 802 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70) \n HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (80) \n AVERAGE WIND SPEED 9.0 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.5 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 62 500 AM \n LOWEST 48 1200 AM \n AVERAGE 55 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 72 97 1983 \n MINIMUM TEMPERATURE (F) 57 42 1929 \n 1964 \n 1979 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 19 2026.....SUNRISE 628 AM EDT SUNSET 647 PM EDT \nSEPTEMBER 20 2026.....SUNRISE 629 AM EDT SUNSET 645 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":"2026-09-20T10:22:00.000Z","issuedLocal":"622 AM EDT SUN SEP 20 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 201022","productId":"iem:CDUS41-KBOX-201022:BOS:2026-09-19:final","source":"iem-afos","corrected":false,"tmaxF":62,"tmaxTimeLocal":"215 PM","tminF":54,"tminTimeLocal":"1031 PM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609201022","parseProblems":[],"rawTextSha256":"ed288b9a3ef7edaec2c4419f1f0e834ee4bf07e3d82303191b1198d40db32ac4","rawText":"CDUS41 KBOX 201022\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n622 AM EDT SUN SEP 20 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 19 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 62 215 PM 92 1983 72 -10 82 \n MINIMUM 54 1031 PM 42 1929 57 -3 61 \n AVERAGE 58 65 -7 72 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 1.21 1936 0.12 -0.12 0.00 \n MONTH TO DATE 1.70 2.15 -0.45 1.55 \n SINCE SEP 1 1.70 2.15 -0.45 1.55 \n SINCE JAN 1 19.26 30.19 -10.93 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 3 4 0 \n MONTH TO DATE 14 25 -11 18 \n SINCE SEP 1 14 25 -11 18 \n SINCE JUL 1 14 34 -20 25 \n\n COOLING \n YESTERDAY 0 2 -2 7 \n MONTH TO DATE 77 74 3 45 \n SINCE SEP 1 77 74 3 45 \n SINCE JAN 1 994 774 220 802 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (50) \n HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70) \n HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (80) \n AVERAGE WIND SPEED 8.0 \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 NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 72 900 PM \n LOWEST 48 1200 AM \n AVERAGE 60 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 72 97 1983 \n MINIMUM TEMPERATURE (F) 57 42 1929 \n 1964 \n 1979 \n\n\nSUNRISE AND SUNSET \nSEPTEMBER 20 2026.....SUNRISE 629 AM EDT SUNSET 645 PM EDT \nSEPTEMBER 21 2026.....SUNRISE 630 AM EDT SUNSET 643 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/2026-09-19","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-19"},"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."}}