NWS CLI archive · settlement source
CLISEA · 시애틀 · America/Los_Angeles · ← 2026-10-10 · 2026-10-12 → · All dates for KSEA · JSON · METAR-derived record
Final issued 2026-10-12 04:26:00 EDT · Product id iem:CDUS46-KSEW-120826:SEA:2026-10-11:final · IEM archive
Product id iem:CDUS46-KSEW-120826:SEA:2026-10-11:final · iem-afos · IEM archive
SHA-256 27da36df0c35fd91c7b7e7ad001198a927e84e29ffd6588cfc9d50eab387744a
Product text
CDUS46 KSEW 120826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT MON OCT 12 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 11 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 60 321 PM 83 1991 62 -2 57
MINIMUM 43 229 AM 36 1946 48 -5 50
AVERAGE 52 55 -3 54
PRECIPITATION (IN)
YESTERDAY 0.00 0.89 2011 0.11 -0.11 0.04
MONTH TO DATE 0.06 1.04 -0.98 0.41
SINCE OCT 1 0.06 1.04 -0.98 0.41
SINCE JAN 1 21.65 24.44 -2.79 16.68
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 13 10 3 11
MONTH TO DATE 76 92 -16 77
SINCE SEP 1 209 194 15 128
SINCE JUL 1 234 249 -15 152
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 2 30 -28 34
SINCE JAN 1 267 263 4 328
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NE (30)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 44 200 PM
AVERAGE 69
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 62 72 2006
MINIMUM TEMPERATURE (F) 48 36 2021
SUNRISE AND SUNSET
OCTOBER 12 2026.......SUNRISE 724 AM PDT SUNSET 627 PM PDT
OCTOBER 13 2026.......SUNRISE 725 AM PDT SUNSET 625 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$Product id iem:CDUS46-KSEW-120116:SEA:2026-10-11:interim · iem-afos · IEM archive
SHA-256 2621348dee7eb731c90c377f42db3f2310ced5725827fda0949cb4015a739f60
Product text
CDUS46 KSEW 120116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SUN OCT 11 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 11 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 60 321 PM 83 1991 62 -2 57
MINIMUM 43 229 AM 36 1946 48 -5 50
AVERAGE 52 55 -3 54
PRECIPITATION (IN)
TODAY 0.00 0.89 2011 0.11 -0.11 0.04
MONTH TO DATE 0.06 1.04 -0.98 0.41
SINCE OCT 1 0.06 1.04 -0.98 0.41
SINCE JAN 1 21.65 24.44 -2.79 16.68
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 13 10 3 11
MONTH TO DATE 76 92 -16 77
SINCE SEP 1 209 194 15 128
SINCE JUL 1 234 249 -15 152
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 2 30 -28 34
SINCE JAN 1 267 263 4 328
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION NE (30)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 44 200 PM
AVERAGE 69
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 62 72 2006
MINIMUM TEMPERATURE (F) 48 36 2021
SUNRISE AND SUNSET
OCTOBER 11 2026.......SUNRISE 722 AM PDT SUNSET 629 PM PDT
OCTOBER 12 2026.......SUNRISE 724 AM PDT SUNSET 627 PM PDT
- 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 KSEA for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KSEA/2026-10-11 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.