{"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":"2026-10-17","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":38,"precipIn":0,"precipTrace":true,"tmax":16.67,"tmin":3.33,"precip":0,"issuedAt":"2026-10-18T05:41:00.000Z","productId":"iem:CDUS41-KBOX-180541:BOS:2026-10-17:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610180541"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-10-17T21:24:00.000Z","issuedLocal":"524 PM EDT SAT OCT 17 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 172124","productId":"iem:CDUS41-KBOX-172124:BOS:2026-10-17:interim","source":"iem-afos","corrected":false,"tmaxF":62,"tmaxTimeLocal":"1204 AM","tminF":47,"tminTimeLocal":"843 AM","precipIn":0,"precipTrace":true,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610172124","parseProblems":[],"rawTextSha256":"abbc9cad49cae67fae2eda161a9541ba1b1fd513d714914f8b4ea04b20dfa245","rawText":"CDUS41 KBOX 172124\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n524 PM EDT SAT OCT 17 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 17 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 1204 AM 89 1947 62 0 61 \n MINIMUM 47 843 AM 27 1886 47 0 46 \n AVERAGE 55 54 1 54 \n\nPRECIPITATION (IN) \n TODAY T 1.18 1989 0.13 -0.13 0.00 \n MONTH TO DATE 2.08 2.18 -0.10 3.27 \n SINCE SEP 1 7.43 5.74 1.69 6.36 \n SINCE JAN 1 24.99 33.78 -8.79 31.31 \n\nSNOWFALL (IN) \n TODAY 0.0 T 1970 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 10 11 -1 11 \n MONTH TO DATE 92 141 -49 125 \n SINCE SEP 1 175 212 -37 157 \n SINCE JUL 1 175 221 -46 164 \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 24 HIGHEST WIND DIRECTION NW (330) \n HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (320) \n AVERAGE WIND SPEED 16.0 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.8 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED TODAY. \n NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 72 200 AM \n LOWEST 37 400 PM \n AVERAGE 55 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 61 82 1947 \n MINIMUM TEMPERATURE (F) 47 31 1883 \n 1939 \n\n\nSUNRISE AND SUNSET \nOCTOBER 17 2026.......SUNRISE 659 AM EDT SUNSET 559 PM EDT \nOCTOBER 18 2026.......SUNRISE 701 AM EDT SUNSET 557 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":"2026-10-18T05:41:00.000Z","issuedLocal":"141 AM EDT SUN OCT 18 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 180541","productId":"iem:CDUS41-KBOX-180541:BOS:2026-10-17:final","source":"iem-afos","corrected":false,"tmaxF":62,"tmaxTimeLocal":"1204 AM","tminF":38,"tminTimeLocal":"1159 PM","precipIn":0,"precipTrace":true,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610180541","parseProblems":[],"rawTextSha256":"bee336898bae3a82bea27a2c4f5d01d0f8f2c1e94743d824a42a5b4dc1d717d9","rawText":"CDUS41 KBOX 180541\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n141 AM EDT SUN OCT 18 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 17 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 1204 AM 89 1947 62 0 61 \n MINIMUM 38 1159 PM 27 1886 47 -9 46 \n AVERAGE 50 54 -4 54 \n\nPRECIPITATION (IN) \n YESTERDAY T 1.18 1989 0.13 -0.13 0.00 \n MONTH TO DATE 2.08 2.18 -0.10 3.27 \n SINCE SEP 1 7.43 5.74 1.69 6.36 \n SINCE JAN 1 24.99 33.78 -8.79 31.31 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 T 1970 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 15 11 4 11 \n MONTH TO DATE 97 141 -44 125 \n SINCE SEP 1 180 212 -32 157 \n SINCE JUL 1 180 221 -41 164 \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 14 RESULTANT WIND DIRECTION NW (320) \n HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (330) \n HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (320) \n AVERAGE WIND SPEED 14.3 \n\n\nSKY COVER \n POSSIBLE SUNSHINE MM \n AVERAGE SKY COVER 0.7 \n\n\nWEATHER CONDITIONS \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY. \n LIGHT RAIN \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 72 200 AM \n LOWEST 35 500 PM \n AVERAGE 54 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 61 82 1947 \n MINIMUM TEMPERATURE (F) 47 31 1883 \n 1939 \n\n\nSUNRISE AND SUNSET \nOCTOBER 18 2026.......SUNRISE 701 AM EDT SUNSET 557 PM EDT \nOCTOBER 19 2026.......SUNRISE 702 AM EDT SUNSET 556 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/2026-10-17","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-17"},"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."}}