NWS CLI archive · settlement source
CLISEA · 시애틀 · America/Los_Angeles · ← 2026-10-01 · 2026-10-03 → · All dates for KSEA · JSON · METAR-derived record
Final issued 2026-10-03 04:26:00 EDT · Product id iem:CDUS46-KSEW-030826:SEA:2026-10-02:final · IEM archive
Product id iem:CDUS46-KSEW-030826:SEA:2026-10-02:final · iem-afos · IEM archive
SHA-256 2a3b7fdeba406ac93595d95e5109f697fc00027b871cb10337265c0c8a8fcf2c
Product text
CDUS46 KSEW 030826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SAT OCT 03 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 2 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 71 315 PM 80 2022 66 5 69
MINIMUM 52 339 AM 35 1950 50 2 54
AVERAGE 62 58 4 62
PRECIPITATION (IN)
YESTERDAY 0.00 0.80 2007 0.08 -0.08 T
MONTH TO DATE 0.00 0.16 -0.16 0.30
SINCE OCT 1 0.00 0.16 -0.16 0.30
SINCE JAN 1 21.59 23.56 -1.97 16.57
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 3 7 -4 3
MONTH TO DATE 8 14 -6 7
SINCE SEP 1 141 116 25 58
SINCE JUL 1 166 171 -5 82
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 1 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 59 200 PM
AVERAGE 76
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 80 1993
MINIMUM TEMPERATURE (F) 50 39 1949
SUNRISE AND SUNSET
OCTOBER 3 2026.......SUNRISE 711 AM PDT SUNSET 644 PM PDT
OCTOBER 4 2026.......SUNRISE 713 AM PDT SUNSET 642 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-030116:SEA:2026-10-02:interim · iem-afos · IEM archive
SHA-256 d673aba472e0b3fe47daa51f15a1a27210d43925b07da30617e48820e387cb0f
Product text
CDUS46 KSEW 030116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT FRI OCT 02 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 2 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 71 315 PM 80 2022 66 5 69
MINIMUM 52 339 AM 35 1950 50 2 54
AVERAGE 62 58 4 62
PRECIPITATION (IN)
TODAY 0.00 0.80 2007 0.08 -0.08 T
MONTH TO DATE 0.00 0.16 -0.16 0.30
SINCE OCT 1 0.00 0.16 -0.16 0.30
SINCE JAN 1 21.59 23.56 -1.97 16.57
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 3 7 -4 3
MONTH TO DATE 8 14 -6 7
SINCE SEP 1 141 116 25 58
SINCE JUL 1 166 171 -5 82
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 4 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 59 200 PM
AVERAGE 76
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 80 1993
MINIMUM TEMPERATURE (F) 50 39 1949
SUNRISE AND SUNSET
OCTOBER 2 2026.......SUNRISE 710 AM PDT SUNSET 646 PM PDT
OCTOBER 3 2026.......SUNRISE 711 AM PDT SUNSET 644 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/2026-10-02 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.