NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-09-06 · 2026-09-08 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-09-08 01:26:00 EDT · Product id iem:CDUS41-KBOX-080526:BOS:2026-09-07:final · IEM archive
Product id iem:CDUS41-KBOX-080526:BOS:2026-09-07:final · iem-afos · IEM archive
SHA-256 6146e0eacc1751966f75bdea06c520239eb3714ab2f3a8b0c880428b208cba6c
Product text
CDUS41 KBOX 080526
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
126 AM EDT TUE SEP 08 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 7 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 82 429 PM 102 1881 76 6 67
MINIMUM 59 558 AM 43 1888 61 -2 61
AVERAGE 71 69 2 64
PRECIPITATION (IN)
YESTERDAY 0.00 1.70 1891 0.10 -0.10 0.79
MONTH TO DATE 0.83 0.74 0.09 1.43
SINCE SEP 1 0.83 0.74 0.09 1.43
SINCE JAN 1 18.39 28.78 -10.39 26.38
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
2002
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 1
MONTH TO DATE 1 5 -4 1
SINCE SEP 1 1 5 -4 1
SINCE JUL 1 1 14 -13 8
COOLING
YESTERDAY 6 4 2 0
MONTH TO DATE 28 36 -8 32
SINCE SEP 1 28 36 -8 32
SINCE JAN 1 945 736 209 789
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 11.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 300 AM
LOWEST 31 400 PM
AVERAGE 52
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 96 2015
MINIMUM TEMPERATURE (F) 61 48 1903
1978
SUNRISE AND SUNSET
SEPTEMBER 8 2026.....SUNRISE 617 AM EDT SUNSET 706 PM EDT
SEPTEMBER 9 2026.....SUNRISE 618 AM EDT SUNSET 704 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$Product id iem:CDUS41-KBOX-072140:BOS:2026-09-07:interim · iem-afos · IEM archive
SHA-256 523f90708d8d67df88bf133f4456a0a0a3335d63835338132bf1391c7b56485d
Product text
CDUS41 KBOX 072140
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
540 PM EDT MON SEP 07 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 7 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 81 351 PM 102 1881 76 5 67
MINIMUM 59 558 AM 43 1888 61 -2 61
AVERAGE 70 69 1 64
PRECIPITATION (IN)
TODAY 0.00 1.70 1891 0.10 -0.10 0.79
MONTH TO DATE 0.83 0.74 0.09 1.43
SINCE SEP 1 0.83 0.74 0.09 1.43
SINCE JAN 1 18.39 28.78 -10.39 26.38
SNOWFALL (IN)
TODAY 0.0 0.0 2000 0.0 0.0 0.0
2001
2002
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
DEGREE DAYS
HEATING
TODAY 0 1 -1 1
MONTH TO DATE 1 5 -4 1
SINCE SEP 1 1 5 -4 1
SINCE JUL 1 1 14 -13 8
COOLING
TODAY 5 4 1 0
MONTH TO DATE 27 36 -9 32
SINCE SEP 1 27 36 -9 32
SINCE JAN 1 944 736 208 789
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 11.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 300 AM
LOWEST 31 400 PM
AVERAGE 52
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 96 2015
MINIMUM TEMPERATURE (F) 61 48 1903
1978
SUNRISE AND SUNSET
SEPTEMBER 7 2026.....SUNRISE 616 AM EDT SUNSET 708 PM EDT
SEPTEMBER 8 2026.....SUNRISE 617 AM EDT SUNSET 706 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/2026-09-07 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.