{"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":"2026-10-21","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":46,"precipIn":0,"precipTrace":false,"tmax":13.33,"tmin":7.78,"precip":0,"issuedAt":"2026-10-22T06:27:00.000Z","productId":"iem:CDUS41-KBOX-220627:BOS:2026-10-21:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610220627"},"issues":[{"kind":"interim","asOfLocal":"0500 PM","issuedAt":"2026-10-21T21:26:00.000Z","issuedLocal":"526 PM EDT WED OCT 21 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 212126","productId":"iem:CDUS41-KBOX-212126:BOS:2026-10-21:interim","source":"iem-afos","corrected":false,"tmaxF":56,"tmaxTimeLocal":"1235 PM","tminF":46,"tminTimeLocal":"612 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610212126","parseProblems":[],"rawTextSha256":"6e2d6b180cde80ab092bbb5545be723498e9b69b0c446d9d8a262d8c6322d248","rawText":"CDUS41 KBOX 212126\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n526 PM EDT WED OCT 21 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 21 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 1235 PM 83 2024 60 -4 67 \n MINIMUM 46 612 AM 30 1974 46 0 51 \n AVERAGE 51 53 -2 59 \n\nPRECIPITATION (IN) \n TODAY 0.00 1.78 1944 0.13 -0.13 0.00 \n 1996 \n MONTH TO DATE 2.08 2.72 -0.64 3.89 \n SINCE SEP 1 7.43 6.28 1.15 6.98 \n SINCE JAN 1 24.99 34.32 -9.33 31.93 \n\nSNOWFALL (IN) \n TODAY 0.0 T 1964 0.0 0.0 0.0 \n MONTH TO DATE 0.0 0.1 -0.1 0.0 \n SINCE SEP 1 0.0 0.1 -0.1 0.0 \n SINCE JUL 1 0.0 0.1 -0.1 0.0 \n\nDEGREE DAYS \n HEATING \n TODAY 14 12 2 6 \n MONTH TO DATE 160 187 -27 153 \n SINCE SEP 1 243 258 -15 185 \n SINCE JUL 1 243 267 -24 192 \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 23 HIGHEST WIND DIRECTION NE (30) \n HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NE (30) \n AVERAGE WIND SPEED 15.0 \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 NO SIGNIFICANT WEATHER WAS OBSERVED. \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST 80 1200 AM \n LOWEST 59 1200 PM \n AVERAGE 70 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TOMORROW\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 60 83 1979 \n MINIMUM TEMPERATURE (F) 46 28 1940 \n\n\nSUNRISE AND SUNSET \nOCTOBER 21 2026.......SUNRISE 704 AM EDT SUNSET 553 PM EDT \nOCTOBER 22 2026.......SUNRISE 705 AM EDT SUNSET 551 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":"2026-10-22T06:27:00.000Z","issuedLocal":"227 AM EDT THU OCT 22 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 220627","productId":"iem:CDUS41-KBOX-220627:BOS:2026-10-21:final","source":"iem-afos","corrected":false,"tmaxF":56,"tmaxTimeLocal":"1235 PM","tminF":46,"tminTimeLocal":"612 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202610220627","parseProblems":[],"rawTextSha256":"bed40e0b1e9fff2e1e2a6cddc2d9b308589ad09209f4978a8982b5098ef169bb","rawText":"CDUS41 KBOX 220627\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n227 AM EDT THU OCT 22 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 21 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 1235 PM 83 2024 60 -4 67 \n MINIMUM 46 612 AM 30 1974 46 0 51 \n AVERAGE 51 53 -2 59 \n\nPRECIPITATION (IN) \n YESTERDAY 0.00 1.78 1944 0.13 -0.13 0.00 \n 1996 \n MONTH TO DATE 2.08 2.72 -0.64 3.89 \n SINCE SEP 1 7.43 6.28 1.15 6.98 \n SINCE JAN 1 24.99 34.32 -9.33 31.93 \n\nSNOWFALL (IN) \n YESTERDAY 0.0 T 1964 0.0 0.0 0.0 \n MONTH TO DATE 0.0 0.1 -0.1 0.0 \n SINCE SEP 1 0.0 0.1 -0.1 0.0 \n SINCE JUL 1 0.0 0.1 -0.1 0.0 \n\nDEGREE DAYS \n HEATING \n YESTERDAY 14 12 2 6 \n MONTH TO DATE 160 187 -27 153 \n SINCE SEP 1 243 258 -15 185 \n SINCE JUL 1 243 267 -24 192 \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 N (10) \n HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (30) \n HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NE (30) \n AVERAGE WIND SPEED 14.9 \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 80 1200 AM \n LOWEST 59 1200 PM \n AVERAGE 70 \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n NORMAL RECORD YEAR \n MAXIMUM TEMPERATURE (F) 60 83 1979 \n MINIMUM TEMPERATURE (F) 46 28 1940 \n\n\nSUNRISE AND SUNSET \nOCTOBER 22 2026.......SUNRISE 705 AM EDT SUNSET 551 PM EDT \nOCTOBER 23 2026.......SUNRISE 706 AM EDT SUNSET 550 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/2026-10-21","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-21"},"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."}}