NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-09-27 · 2026-09-29 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-09-29 01:29:00 EDT · Product id iem:CDUS41-KBOX-290529:BOS:2026-09-28:final · IEM archive
Product id iem:CDUS41-KBOX-290529:BOS:2026-09-28:final · iem-afos · IEM archive
SHA-256 796d8e01159d7d2172082f99b9659c108127688838c326eca1574b11e2e679a2
Product text
CDUS41 KBOX 290529
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
129 AM EDT TUE SEP 29 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 28 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 58 1009 PM 90 1873 69 -11 84
1881
MINIMUM 56 1159 PM 37 1947 54 2 65
AVERAGE 57 61 -4 75
PRECIPITATION (IN)
YESTERDAY 1.00 1.88 2004 0.13 0.87 0.01
MONTH TO DATE 5.34 3.30 2.04 3.09
SINCE SEP 1 5.34 3.30 2.04 3.09
SINCE JAN 1 22.90 31.34 -8.44 28.04
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
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 5 3 0
MONTH TO DATE 77 60 17 32
SINCE SEP 1 77 60 17 32
SINCE JUL 1 77 69 8 39
COOLING
YESTERDAY 0 1 -1 10
MONTH TO DATE 77 89 -12 79
SINCE SEP 1 77 89 -12 79
SINCE JAN 1 994 789 205 836
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 18 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 17.8
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 97 1000 AM
LOWEST 90 900 PM
AVERAGE 94
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 88 1952
MINIMUM TEMPERATURE (F) 53 34 1914
SUNRISE AND SUNSET
SEPTEMBER 29 2026.....SUNRISE 639 AM EDT SUNSET 629 PM EDT
SEPTEMBER 30 2026.....SUNRISE 640 AM EDT SUNSET 627 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-282123:BOS:2026-09-28:interim · iem-afos · IEM archive
SHA-256 044a4bed9f233cdb2b859bf76d290cead906e70b4fc69a7ddc43723d28957520
Product text
CDUS41 KBOX 282123
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
523 PM EDT MON SEP 28 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 28 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 58 117 PM 90 1873 69 -11 84
1881
MINIMUM 56 359 PM 37 1947 54 2 65
AVERAGE 57 61 -4 75
PRECIPITATION (IN)
TODAY 0.74 1.88 2004 0.13 0.61 0.01
MONTH TO DATE 5.08 3.30 1.78 3.09
SINCE SEP 1 5.08 3.30 1.78 3.09
SINCE JAN 1 22.64 31.34 -8.70 28.04
SNOWFALL (IN)
TODAY 0.0 0.0 2000 0.0 0.0 0.0
2001
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 5 3 0
MONTH TO DATE 77 60 17 32
SINCE SEP 1 77 60 17 32
SINCE JUL 1 77 69 8 39
COOLING
TODAY 0 1 -1 10
MONTH TO DATE 77 89 -12 79
SINCE SEP 1 77 89 -12 79
SINCE JAN 1 994 789 205 836
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 20.8
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 97 1000 AM
LOWEST 93 300 AM
AVERAGE 95
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 88 1952
MINIMUM TEMPERATURE (F) 53 34 1914
SUNRISE AND SUNSET
SEPTEMBER 28 2026.....SUNRISE 638 AM EDT SUNSET 631 PM EDT
SEPTEMBER 29 2026.....SUNRISE 639 AM EDT SUNSET 629 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/2026-09-28 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.