{"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":"2026-08-31","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":73,"tminF":63,"precipIn":0,"precipTrace":false,"tmax":22.78,"tmin":17.22,"precip":0,"issuedAt":"2026-09-01T05:26:00.000Z","productId":"iem:CDUS41-KBOX-010526:BOS:2026-08-31:final","corrected":false,"reissues":0,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609010526"},"issues":[{"kind":"final","asOfLocal":null,"issuedAt":"2026-09-01T05:26:00.000Z","issuedLocal":"126 AM EDT TUE SEP 01 2026","office":"KBOX","wmoHeader":"CDUS41 KBOX 010526","productId":"iem:CDUS41-KBOX-010526:BOS:2026-08-31:final","source":"iem-afos","corrected":false,"tmaxF":73,"tmaxTimeLocal":"505 PM","tminF":63,"tminTimeLocal":"514 AM","precipIn":0,"precipTrace":false,"snowIn":0,"snowTrace":false,"nwsProductUrl":null,"iemArchiveUrl":"https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=CLIBOS&e=202609010526","parseProblems":[],"rawTextSha256":"474d878f079120cca042679a258d810780efed93938535d28d8379e6c3188530","rawText":"CDUS41 KBOX 010526\nCLIBOS\n\nCLIMATE REPORT \nNATIONAL WEATHER SERVICE BOSTON/NORTON MA\n126 AM EDT TUE SEP 01 2026\n\n...................................\n\n...THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 31 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         73    505 PM  97    1881  78     -5       72       \n                                      1953                           \n  MINIMUM         63    514 AM  47    1965  63      0       59       \n  AVERAGE         68                        70     -2       66     \n\nPRECIPITATION (IN)                                                    \n  YESTERDAY        0.00          2.58 1954   0.10  -0.10     0.00     \n  MONTH TO DATE    0.98                      3.23  -2.25     0.83     \n  SINCE JUN 1      7.07                     10.39  -3.32     5.16     \n  SINCE JAN 1     17.56                     28.04 -10.48    24.95     \n\nSNOWFALL (IN)                                                              \n  YESTERDAY        0.0           T    1954   0.0    0.0      0.0      \n  MONTH TO DATE    0.0                       0.0    0.0      0.0      \n  SINCE JUN 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                         0      0        0        \n  MONTH TO DATE    0                         0      0        7        \n  SINCE JUN 1     14                        54    -40       51        \n  SINCE JUL 1      0                         4     -4        7        \n\n COOLING                                                              \n  YESTERDAY        3                         6     -3        1        \n  MONTH TO DATE  324                       245     79      187        \n  SINCE JUN 1    856                       667    189      728        \n  SINCE JAN 1    917                       700    217      757        \n...................................................................\n\n\nWIND (MPH)                                                            \n  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  SE (120)       \n  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (110)       \n  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     E (100)       \n  AVERAGE WIND SPEED     9.5                                        \n\n\nSKY COVER                                                             \n  POSSIBLE SUNSHINE  MM                                                 \n  AVERAGE SKY COVER 0.5                                                 \n\n\nWEATHER CONDITIONS                                                    \nTHE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         \n  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  \n\n\nRELATIVE HUMIDITY (PERCENT)\n HIGHEST    87           400 AM                                      \n LOWEST     51          1200 PM                                      \n AVERAGE    69                                                        \n\n..........................................................\n\n\nTHE BOSTON MA CLIMATE NORMALS FOR TODAY\n                         NORMAL    RECORD    YEAR                     \n MAXIMUM TEMPERATURE (F)   78        96      1881                      \n MINIMUM TEMPERATURE (F)   63        50      1887                      \n\n\nSUNRISE AND SUNSET                                                    \nSEPTEMBER  1 2026.....SUNRISE   609 AM EDT   SUNSET   718 PM EDT     \nSEPTEMBER  2 2026.....SUNRISE   610 AM EDT   SUNSET   716 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/2026-08-31","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-08-31"},"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."}}