NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-09-02 · 2026-09-04 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-09-04 01:25:00 EDT · Product id iem:CDUS41-KBOX-040525:BOS:2026-09-03:final · IEM archive
Product id iem:CDUS41-KBOX-040525:BOS:2026-09-03:final · iem-afos · IEM archive
SHA-256 c854cb19f81e0a255ba350e51ad890de3bfc6cfa44ff4d34933a803246062f9f
Product text
CDUS41 KBOX 040525
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
125 AM EDT FRI SEP 04 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 3 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 73 251 PM 97 1929 77 -4 76
MINIMUM 63 430 AM 47 1885 62 1 58
1893
AVERAGE 68 70 -2 67
PRECIPITATION (IN)
YESTERDAY 0.46 3.15 1972 0.11 0.35 0.00
MONTH TO DATE 0.72 0.32 0.40 0.00
SINCE SEP 1 0.72 0.32 0.40 0.00
SINCE JAN 1 18.28 28.36 -10.08 24.95
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 0
MONTH TO DATE 0 1 -1 0
SINCE SEP 1 0 1 -1 0
SINCE JUL 1 0 10 -10 7
COOLING
YESTERDAY 3 5 -2 2
MONTH TO DATE 7 17 -10 6
SINCE SEP 1 7 17 -10 6
SINCE JAN 1 924 717 207 763
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SE (130)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 400 AM
LOWEST 78 200 AM
AVERAGE 88
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 94 1884
1973
MINIMUM TEMPERATURE (F) 62 43 1872
SUNRISE AND SUNSET
SEPTEMBER 4 2026.....SUNRISE 612 AM EDT SUNSET 713 PM EDT
SEPTEMBER 5 2026.....SUNRISE 614 AM EDT SUNSET 711 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-032124:BOS:2026-09-03:interim · iem-afos · IEM archive
SHA-256 d0553000ffe5a84bdff62162ce45cdef5170c7e03dd3db2c382b8da6669efffb
Product text
CDUS41 KBOX 032124
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
524 PM EDT THU SEP 03 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 3 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 73 251 PM 97 1929 77 -4 76
MINIMUM 63 430 AM 47 1885 62 1 58
1893
AVERAGE 68 70 -2 67
PRECIPITATION (IN)
TODAY 0.46 3.15 1972 0.11 0.35 0.00
MONTH TO DATE 0.72 0.32 0.40 0.00
SINCE SEP 1 0.72 0.32 0.40 0.00
SINCE JAN 1 18.28 28.36 -10.08 24.95
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 0
MONTH TO DATE 0 1 -1 0
SINCE SEP 1 0 1 -1 0
SINCE JUL 1 0 10 -10 7
COOLING
TODAY 3 5 -2 2
MONTH TO DATE 7 17 -10 6
SINCE SEP 1 7 17 -10 6
SINCE JAN 1 924 717 207 763
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 400 AM
LOWEST 78 200 AM
AVERAGE 88
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 94 1884
1973
MINIMUM TEMPERATURE (F) 62 43 1872
SUNRISE AND SUNSET
SEPTEMBER 3 2026.....SUNRISE 611 AM EDT SUNSET 715 PM EDT
SEPTEMBER 4 2026.....SUNRISE 612 AM EDT SUNSET 713 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/2026-09-03 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.