NWS CLI archive · settlement source
CLIBOS · 보스턴 · America/New_York · ← 2026-10-16 · 2026-10-18 → · All dates for KBOS · JSON · METAR-derived record
Final issued 2026-10-18 01:41:00 EDT · Product id iem:CDUS41-KBOX-180541:BOS:2026-10-17:final · IEM archive
Product id iem:CDUS41-KBOX-180541:BOS:2026-10-17:final · iem-afos · IEM archive
SHA-256 bee336898bae3a82bea27a2c4f5d01d0f8f2c1e94743d824a42a5b4dc1d717d9
Product text
CDUS41 KBOX 180541
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
141 AM EDT SUN OCT 18 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 17 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 62 1204 AM 89 1947 62 0 61
MINIMUM 38 1159 PM 27 1886 47 -9 46
AVERAGE 50 54 -4 54
PRECIPITATION (IN)
YESTERDAY T 1.18 1989 0.13 -0.13 0.00
MONTH TO DATE 2.08 2.18 -0.10 3.27
SINCE SEP 1 7.43 5.74 1.69 6.36
SINCE JAN 1 24.99 33.78 -8.79 31.31
SNOWFALL (IN)
YESTERDAY 0.0 T 1970 0.0 0.0 0.0
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 15 11 4 11
MONTH TO DATE 97 141 -44 125
SINCE SEP 1 180 212 -32 157
SINCE JUL 1 180 221 -41 164
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 19 6 13 23
SINCE SEP 1 96 97 -1 108
SINCE JAN 1 1013 797 216 865
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION NW (320)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 14.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 200 AM
LOWEST 35 500 PM
AVERAGE 54
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 82 1947
MINIMUM TEMPERATURE (F) 47 31 1883
1939
SUNRISE AND SUNSET
OCTOBER 18 2026.......SUNRISE 701 AM EDT SUNSET 557 PM EDT
OCTOBER 19 2026.......SUNRISE 702 AM EDT SUNSET 556 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-172124:BOS:2026-10-17:interim · iem-afos · IEM archive
SHA-256 abbc9cad49cae67fae2eda161a9541ba1b1fd513d714914f8b4ea04b20dfa245
Product text
CDUS41 KBOX 172124
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
524 PM EDT SAT OCT 17 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 17 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 62 1204 AM 89 1947 62 0 61
MINIMUM 47 843 AM 27 1886 47 0 46
AVERAGE 55 54 1 54
PRECIPITATION (IN)
TODAY T 1.18 1989 0.13 -0.13 0.00
MONTH TO DATE 2.08 2.18 -0.10 3.27
SINCE SEP 1 7.43 5.74 1.69 6.36
SINCE JAN 1 24.99 33.78 -8.79 31.31
SNOWFALL (IN)
TODAY 0.0 T 1970 0.0 0.0 0.0
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 10 11 -1 11
MONTH TO DATE 92 141 -49 125
SINCE SEP 1 175 212 -37 157
SINCE JUL 1 175 221 -46 164
COOLING
TODAY 0 0 0 0
MONTH TO DATE 19 6 13 23
SINCE SEP 1 96 97 -1 108
SINCE JAN 1 1013 797 216 865
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 16.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 200 AM
LOWEST 37 400 PM
AVERAGE 55
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 82 1947
MINIMUM TEMPERATURE (F) 47 31 1883
1939
SUNRISE AND SUNSET
OCTOBER 17 2026.......SUNRISE 659 AM EDT SUNSET 559 PM EDT
OCTOBER 18 2026.......SUNRISE 701 AM EDT SUNSET 557 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/2026-10-17 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.