NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-09-13 · 2026-09-15 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-09-15 01:26:00 EDT · Product id iem:CDUS41-KBOX-150526:BOS:2026-09-14:final · IEM archive
Product id iem:CDUS41-KBOX-150526:BOS:2026-09-14:final · iem-afos · IEM archive
SHA-256 b9712c423e3c61ffec9a08ce714c209947182820e7f5a6679eb03df7aca16f57
Product text
CDUS41 KBOX 150526
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
126 AM EDT TUE SEP 15 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 14 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 74 304 PM 92 1915 74 0 75
1931
MINIMUM 58 1159 PM 40 1884 59 -1 59
AVERAGE 66 66 0 67
PRECIPITATION (IN)
YESTERDAY T 2.46 1944 0.12 -0.12 0.00
MONTH TO DATE 1.70 1.52 0.18 1.43
SINCE SEP 1 1.70 1.52 0.18 1.43
SINCE JAN 1 19.26 29.56 -10.30 26.38
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 2 -2 0
MONTH TO DATE 2 14 -12 14
SINCE SEP 1 2 14 -12 14
SINCE JUL 1 2 23 -21 21
COOLING
YESTERDAY 1 3 -2 2
MONTH TO DATE 63 61 2 34
SINCE SEP 1 63 61 2 34
SINCE JAN 1 980 761 219 791
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 12.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 32 200 PM
AVERAGE 63
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 1915
MINIMUM TEMPERATURE (F) 59 41 1913
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 624 AM EDT SUNSET 654 PM EDT
SEPTEMBER 16 2026.....SUNRISE 625 AM EDT SUNSET 652 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-142127:BOS:2026-09-14:interim · iem-afos · IEM archive
SHA-256 7cfea0e8911bdc5e1084bd5137e7ca1cd300f992486f2c71ff17b3ea8e6e8496
Product text
CDUS41 KBOX 142127
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
527 PM EDT MON SEP 14 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 14 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 74 304 PM 92 1915 74 0 75
1931
MINIMUM 67 826 AM 40 1884 59 8 59
AVERAGE 71 66 5 67
PRECIPITATION (IN)
TODAY T 2.46 1944 0.12 -0.12 0.00
MONTH TO DATE 1.70 1.52 0.18 1.43
SINCE SEP 1 1.70 1.52 0.18 1.43
SINCE JAN 1 19.26 29.56 -10.30 26.38
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 2 -2 0
MONTH TO DATE 2 14 -12 14
SINCE SEP 1 2 14 -12 14
SINCE JUL 1 2 23 -21 21
COOLING
TODAY 6 3 3 2
MONTH TO DATE 68 61 7 34
SINCE SEP 1 68 61 7 34
SINCE JAN 1 985 761 224 791
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 32 200 PM
AVERAGE 63
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 1915
MINIMUM TEMPERATURE (F) 59 41 1913
SUNRISE AND SUNSET
SEPTEMBER 14 2026.....SUNRISE 623 AM EDT SUNSET 655 PM EDT
SEPTEMBER 15 2026.....SUNRISE 624 AM EDT SUNSET 654 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/2026-09-14 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.