NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-08-31 · 2026-09-02 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-09-02 01:29:00 EDT · Product id iem:CDUS41-KBOX-020529:BOS:2026-09-01:final · IEM archive
Product id iem:CDUS41-KBOX-020529:BOS:2026-09-01:final · iem-afos · IEM archive
SHA-256 5c59d2245f6a257d78876386840e827c7712f763c43d4911113df1ccbaad7eaa
Product text
CDUS41 KBOX 020529
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
129 AM EDT WED SEP 02 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 1 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 69 1058 AM 96 1881 78 -9 73
MINIMUM 63 1139 PM 50 1887 63 0 60
AVERAGE 66 70 -4 67
PRECIPITATION (IN)
YESTERDAY 0.26 2.11 1949 0.11 0.15 0.00
MONTH TO DATE 0.26 0.11 0.15 0.00
SINCE SEP 1 0.26 0.11 0.15 0.00
SINCE JAN 1 17.82 28.15 -10.33 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 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 9 -9 7
COOLING
YESTERDAY 1 6 -5 2
MONTH TO DATE 1 6 -5 2
SINCE SEP 1 1 6 -5 2
SINCE JAN 1 918 706 212 759
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (130)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 100 PM
LOWEST 68 1000 PM
AVERAGE 82
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 100 1953
MINIMUM TEMPERATURE (F) 62 49 1896
1967
SUNRISE AND SUNSET
SEPTEMBER 2 2026.....SUNRISE 610 AM EDT SUNSET 716 PM EDT
SEPTEMBER 3 2026.....SUNRISE 611 AM EDT SUNSET 715 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-012123:BOS:2026-09-01:interim · iem-afos · IEM archive
SHA-256 28a481b7736e27ad07c362fe108dac8dea93bf7409668893adab4d95c5cfe445
Product text
CDUS41 KBOX 012123
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
523 PM EDT TUE SEP 01 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 1 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 69 1058 AM 96 1881 78 -9 73
MINIMUM 65 359 PM 50 1887 63 2 60
AVERAGE 67 70 -3 67
PRECIPITATION (IN)
TODAY 0.26 2.11 1949 0.11 0.15 0.00
MONTH TO DATE 0.26 0.11 0.15 0.00
SINCE SEP 1 0.26 0.11 0.15 0.00
SINCE JAN 1 17.82 28.15 -10.33 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 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 9 -9 7
COOLING
TODAY 2 6 -4 2
MONTH TO DATE 2 6 -4 2
SINCE SEP 1 2 6 -4 2
SINCE JAN 1 919 706 213 759
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 100 PM
LOWEST 73 1200 AM
AVERAGE 85
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 100 1953
MINIMUM TEMPERATURE (F) 62 49 1896
1967
SUNRISE AND SUNSET
SEPTEMBER 1 2026.....SUNRISE 609 AM EDT SUNSET 718 PM EDT
SEPTEMBER 2 2026.....SUNRISE 610 AM EDT SUNSET 716 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/2026-09-01 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.