{"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":"2026-11-13","day":{"date":"2026-10-19","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":56,"tminF":40,"precipIn":0,"precipTrace":false,"tmax":13.33,"tmin":4.44,"precip":0,"issuedAt":"2026-10-20T06:21:00.000Z","productId":"iem:CDUS41-KBOX-200621:BOS:2026-10-19:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610200621"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-10-19T21:24:00.000Z","issuedLocal":"524 PM EDT MON OCT 19 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 192124","productId":"iem:CDUS41-KBOX-192124:BOS:2026-10-19:interim","source":"iem-afos","corrected":false,"tmaxF":56,"tmaxTimeLocal":"153 PM","tminF":40,"tminTimeLocal":"628 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610192124","parseProblems":[],"rawTextSha256":"d028a9db71c87da5b53ac5af7f5b9edddbb73f0ee6a5f2980325bab2ed8dcc14","rawText":"CDUS41 KBOX 192124\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n524 PM EDT MON OCT 19 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 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 56 153 PM 84 1945 61 -5 68 \n MINIMUM 40 628 AM 28 1922 46 -6 49 \n AVERAGE 48 54 -6 59 \n\nPRECIPITATION (IN) \n TODAY 0.00 2.06 1932 0.13 -0.13 0.00 \n MONTH TO DATE 2.08 2.45 -0.37 3.27 \n SINCE SEP 1 7.43 6.01 1.42 6.36 \n SINCE JAN 1 24.99 34.05 -9.06 31.31 \n\nSNOWFALL (IN) \n TODAY 0.0 T 1972 0.0 0.0 0.0 \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 17 11 6 6 \n MONTH TO DATE 134 163 -29 143 \n SINCE SEP 1 217 234 -17 175 \n SINCE JUL 1 217 243 -26 182 \n\n COOLING \n TODAY 0 0 0 0 \n MONTH TO DATE 19 6 13 23 \n SINCE SEP 1 96 97 -1 108 \n SINCE JAN 1 1013 797 216 865 \n...................................................................\n\n\nWIND (MPH) \n HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (80) \n HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (60) \n AVERAGE WIND SPEED 5.0 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.1 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 82 700 AM \n LOWEST 59 1000 AM \n AVERAGE 71 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 61 79 1969 \n MINIMUM TEMPERATURE (F) 46 32 1900 \n 1972 \n 1974 \n\n\nSUNRISE AND SUNSET \nOCTOBER 19 2026.......SUNRISE 702 AM EDT SUNSET 556 PM EDT \nOCTOBER 20 2026.......SUNRISE 703 AM EDT SUNSET 554 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":"2026-10-20T06:21:00.000Z","issuedLocal":"221 AM EDT TUE OCT 20 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 200621","productId":"iem:CDUS41-KBOX-200621:BOS:2026-10-19:final","source":"iem-afos","corrected":false,"tmaxF":56,"tmaxTimeLocal":"153 PM","tminF":40,"tminTimeLocal":"628 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610200621","parseProblems":[],"rawTextSha256":"5645fc39bde6005ed0c92968b55b01510941dc31d21815387d208ec0dc47b963","rawText":"CDUS41 KBOX 200621\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n221 AM EDT TUE OCT 20 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 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 56 153 PM 84 1945 61 -5 68 \n MINIMUM 40 628 AM 28 1922 46 -6 49 \n AVERAGE 48 54 -6 59 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 2.06 1932 0.13 -0.13 0.00 \n MONTH TO DATE 2.08 2.45 -0.37 3.27 \n SINCE SEP 1 7.43 6.01 1.42 6.36 \n SINCE JAN 1 24.99 34.05 -9.06 31.31 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 T 1972 0.0 0.0 0.0 \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 17 11 6 6 \n MONTH TO DATE 134 163 -29 143 \n SINCE SEP 1 217 234 -17 175 \n SINCE JUL 1 217 243 -26 182 \n\n COOLING \n YESTERDAY 0 0 0 0 \n MONTH TO DATE 19 6 13 23 \n SINCE SEP 1 96 97 -1 108 \n SINCE JAN 1 1013 797 216 865 \n...................................................................\n\n\nWIND (MPH) \n RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (70) \n HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (80) \n HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (60) \n AVERAGE WIND SPEED 5.2 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.1 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 83 900 PM \n LOWEST 59 1000 AM \n AVERAGE 71 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 61 79 1969 \n MINIMUM TEMPERATURE (F) 46 32 1900 \n 1972 \n 1974 \n\n\nSUNRISE AND SUNSET \nOCTOBER 20 2026.......SUNRISE 703 AM EDT SUNSET 554 PM EDT \nOCTOBER 21 2026.......SUNRISE 704 AM EDT SUNSET 553 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/2026-10-19","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-19"},"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."}}