NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-09-04 · 2026-09-06 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-09-06 01:25:00 EDT · Product id iem:CDUS41-KBOX-060525:BOS:2026-09-05:final · IEM archive
Product id iem:CDUS41-KBOX-060525:BOS:2026-09-05:final · iem-afos · IEM archive
SHA-256 eeaf97c915be4745c4bac6e9ff89f81f1bc164605f931e1961ba28464bfc21ab
Product text
CDUS41 KBOX 060525
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
125 AM EDT SUN SEP 06 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 5 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 73 956 AM 93 1880 77 -4 84
MINIMUM 64 1044 PM 48 1872 62 2 65
1896
AVERAGE 69 69 0 75
PRECIPITATION (IN)
YESTERDAY T 1.06 1907 0.10 -0.10 0.08
MONTH TO DATE 0.72 0.53 0.19 0.08
SINCE SEP 1 0.72 0.53 0.19 0.08
SINCE JAN 1 18.28 28.57 -10.29 25.03
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 3 -3 0
SINCE SEP 1 0 3 -3 0
SINCE JUL 1 0 12 -12 7
COOLING
YESTERDAY 4 5 -1 10
MONTH TO DATE 22 27 -5 20
SINCE SEP 1 22 27 -5 20
SINCE JAN 1 939 727 212 777
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (20)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 9.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 500 AM
LOWEST 61 1000 AM
AVERAGE 70
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 97 2018
MINIMUM TEMPERATURE (F) 61 43 1888
SUNRISE AND SUNSET
SEPTEMBER 6 2026.....SUNRISE 615 AM EDT SUNSET 709 PM EDT
SEPTEMBER 7 2026.....SUNRISE 616 AM EDT SUNSET 708 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-052145:BOS:2026-09-05:interim · iem-afos · IEM archive
SHA-256 e552f661fd55998c5980ef8a92b854a347d3820d6d82a52e220b55c623ba7760
Product text
CDUS41 KBOX 052145
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
545 PM EDT SAT SEP 05 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 5 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 73 956 AM 93 1880 77 -4 84
MINIMUM 65 555 AM 48 1872 62 3 65
1896
AVERAGE 69 69 0 75
PRECIPITATION (IN)
TODAY 0.00 1.06 1907 0.10 -0.10 0.08
MONTH TO DATE 0.72 0.53 0.19 0.08
SINCE SEP 1 0.72 0.53 0.19 0.08
SINCE JAN 1 18.28 28.57 -10.29 25.03
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 3 -3 0
SINCE SEP 1 0 3 -3 0
SINCE JUL 1 0 12 -12 7
COOLING
TODAY 4 5 -1 10
MONTH TO DATE 22 27 -5 20
SINCE SEP 1 22 27 -5 20
SINCE JAN 1 939 727 212 777
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 11.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 500 AM
LOWEST 61 1000 AM
AVERAGE 70
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 97 2018
MINIMUM TEMPERATURE (F) 61 43 1888
SUNRISE AND SUNSET
SEPTEMBER 5 2026.....SUNRISE 614 AM EDT SUNSET 711 PM EDT
SEPTEMBER 6 2026.....SUNRISE 615 AM EDT SUNSET 709 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/2026-09-05 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.