NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-09-23 · 2026-09-25 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-09-25 01:29:00 EDT · Product id iem:CDUS41-KBOX-250529:BOS:2026-09-24:final · IEM archive
Product id iem:CDUS41-KBOX-250529:BOS:2026-09-24:final · iem-afos · IEM archive
SHA-256 c07c6898e65aa0d3ddd59bd5a57d129817e0ad96596caa6d3519791b7df9a29f
Product text
CDUS41 KBOX 250529
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
129 AM EDT FRI SEP 25 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 24 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 65 1250 PM 90 1959 70 -5 66
MINIMUM 49 543 AM 39 1885 55 -6 63
1963
1974
AVERAGE 57 63 -6 65
PRECIPITATION (IN)
YESTERDAY 0.00 1.25 1955 0.13 -0.13 0.11
MONTH TO DATE 1.81 2.79 -0.98 1.66
SINCE SEP 1 1.81 2.79 -0.98 1.66
SINCE JAN 1 19.37 30.83 -11.46 26.61
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 8 4 4 0
MONTH TO DATE 47 42 5 32
SINCE SEP 1 47 42 5 32
SINCE JUL 1 47 51 -4 39
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 77 84 -7 50
SINCE SEP 1 77 84 -7 50
SINCE JAN 1 994 784 210 807
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION NE (30)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 45 100 PM
AVERAGE 69
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 89 1926
MINIMUM TEMPERATURE (F) 55 38 1950
SUNRISE AND SUNSET
SEPTEMBER 25 2026.....SUNRISE 635 AM EDT SUNSET 636 PM EDT
SEPTEMBER 26 2026.....SUNRISE 636 AM EDT SUNSET 634 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-242126:BOS:2026-09-24:interim · iem-afos · IEM archive
SHA-256 83887531adec50a1331744db0c9d42e882043696d12b667bb190d7042260cba2
Product text
CDUS41 KBOX 242126
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
526 PM EDT THU SEP 24 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 24 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 65 1250 PM 90 1959 70 -5 66
MINIMUM 49 543 AM 39 1885 55 -6 63
1963
1974
AVERAGE 57 63 -6 65
PRECIPITATION (IN)
TODAY 0.00 1.25 1955 0.13 -0.13 0.11
MONTH TO DATE 1.81 2.79 -0.98 1.66
SINCE SEP 1 1.81 2.79 -0.98 1.66
SINCE JAN 1 19.37 30.83 -11.46 26.61
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 8 4 4 0
MONTH TO DATE 47 42 5 32
SINCE SEP 1 47 42 5 32
SINCE JUL 1 47 51 -4 39
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 77 84 -7 50
SINCE SEP 1 77 84 -7 50
SINCE JAN 1 994 784 210 807
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 14.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 45 100 PM
AVERAGE 69
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 89 1926
MINIMUM TEMPERATURE (F) 55 38 1950
SUNRISE AND SUNSET
SEPTEMBER 24 2026.....SUNRISE 634 AM EDT SUNSET 638 PM EDT
SEPTEMBER 25 2026.....SUNRISE 635 AM EDT SUNSET 636 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/2026-09-24 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.