NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-09-29 · 2026-10-01 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-10-01 01:30:00 EDT · Product id iem:CDUS41-KBOX-010530:BOS:2026-09-30:final · IEM archive
Product id iem:CDUS41-KBOX-010530:BOS:2026-09-30:final · iem-afos · IEM archive
SHA-256 847fde5abce2d48f7f25b5ca79d89587a9ca45b308d1792362f259a025670834
Product text
CDUS41 KBOX 010530
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
130 AM EDT THU OCT 01 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 30 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 66 653 PM 87 1986 68 -2 72
MINIMUM 60 1146 PM 36 1888 53 7 57
AVERAGE 63 60 3 65
PRECIPITATION (IN)
YESTERDAY 0.01 2.46 2015 0.13 -0.12 0.00
MONTH TO DATE 5.35 3.56 1.79 3.09
SINCE SEP 1 5.35 3.56 1.79 3.09
SINCE JAN 1 22.91 31.60 -8.69 28.04
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 2 6 -4 0
MONTH TO DATE 83 71 12 32
SINCE SEP 1 83 71 12 32
SINCE JUL 1 83 80 3 39
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 77 91 -14 85
SINCE SEP 1 77 91 -14 85
SINCE JAN 1 994 791 203 842
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 81 1200 PM
AVERAGE 91
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 90 1881
MINIMUM TEMPERATURE (F) 53 36 1992
SUNRISE AND SUNSET
OCTOBER 1 2026.......SUNRISE 641 AM EDT SUNSET 626 PM EDT
OCTOBER 2 2026.......SUNRISE 642 AM EDT SUNSET 624 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-302232:BOS:2026-09-30:interim · iem-afos · IEM archive
SHA-256 abdb2ab11945ddfe29ed86dc75fb8df792d998d355c77ee6851e766e1e0feda9
Product text
CDUS41 KBOX 302232
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
632 PM EDT WED SEP 30 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 30 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 66 132 PM 87 1986 68 -2 72
MINIMUM 60 657 AM 36 1888 53 7 57
AVERAGE 63 60 3 65
PRECIPITATION (IN)
TODAY 0.01 2.46 2015 0.13 -0.12 0.00
MONTH TO DATE 5.35 3.56 1.79 3.09
SINCE SEP 1 5.35 3.56 1.79 3.09
SINCE JAN 1 22.91 31.60 -8.69 28.04
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 2 6 -4 0
MONTH TO DATE 83 71 12 32
SINCE SEP 1 83 71 12 32
SINCE JUL 1 83 80 3 39
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 77 91 -14 85
SINCE SEP 1 77 91 -14 85
SINCE JAN 1 994 791 203 842
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 3.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 81 1200 PM
AVERAGE 91
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 90 1881
MINIMUM TEMPERATURE (F) 53 36 1992
SUNRISE AND SUNSET
SEPTEMBER 30 2026.....SUNRISE 640 AM EDT SUNSET 627 PM EDT
OCTOBER 1 2026.......SUNRISE 641 AM EDT SUNSET 626 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/2026-09-30 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.