NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-10-26 · 2026-10-28 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-10-28 01:25:00 EDT · Product id iem:CDUS41-KBOX-280525:BOS:2026-10-27:final · IEM archive
Product id iem:CDUS41-KBOX-280525:BOS:2026-10-27:final · iem-afos · IEM archive
SHA-256 87f40436f4f723ef70c6ecc3a3b43dd6347bdc2de43db17e1b98150778c93463
Product text
CDUS41 KBOX 280525
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
125 AM EDT WED OCT 28 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 27 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 57 1210 AM 85 1963 58 -1 52
MINIMUM 43 859 PM 25 1936 44 -1 40
AVERAGE 50 51 -1 46
PRECIPITATION (IN)
YESTERDAY 0.00 1.95 1943 0.13 -0.13 0.00
MONTH TO DATE 2.08 3.52 -1.44 4.30
SINCE SEP 1 7.43 7.08 0.35 7.39
SINCE JAN 1 24.99 35.12 -10.13 32.34
SNOWFALL (IN)
YESTERDAY 0.0 T 1957 0.0 0.0 0.0
2011
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE SEP 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.1 -0.1 0.0
DEGREE DAYS
HEATING
YESTERDAY 15 14 1 19
MONTH TO DATE 239 266 -27 227
SINCE SEP 1 322 337 -15 259
SINCE JUL 1 322 346 -24 266
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 19 6 13 23
SINCE SEP 1 96 97 -1 108
SINCE JAN 1 1013 797 216 865
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 700 PM
LOWEST 41 1100 AM
AVERAGE 55
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 81 1919
1927
2023
MINIMUM TEMPERATURE (F) 44 28 1936
SUNRISE AND SUNSET
OCTOBER 28 2026.......SUNRISE 713 AM EDT SUNSET 543 PM EDT
OCTOBER 29 2026.......SUNRISE 714 AM EDT SUNSET 541 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$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/2026-10-27 with links to the NWS product and the IEM archive. A CORRECTED re-issue published before the settlement time supersedes earlier issues.
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.
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.