NWS CLI archive · settlement source
CLISEA · 시애틀 · America/Los_Angeles · ← 2026-10-24 · 2026-10-26 → · All dates for KSEA · JSON · METAR-derived record
Final issued 2026-10-26 04:27:00 EDT · Product id iem:CDUS46-KSEW-260827:SEA:2026-10-25:final · IEM archive
Product id iem:CDUS46-KSEW-260827:SEA:2026-10-25:final · iem-afos · IEM archive
SHA-256 b2468dbf23ff1d58177a80d4d888003ce70fb08742053830f112de0bb5918d8f
Product text
CDUS46 KSEW 260827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT MON OCT 26 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 25 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 58 356 PM 67 1965 57 1 56
1982
2015
MINIMUM 46 724 AM 31 1954 45 1 45
AVERAGE 52 51 1 51
PRECIPITATION (IN)
YESTERDAY 0.22 1.16 1986 0.16 0.06 0.32
MONTH TO DATE 0.30 2.91 -2.61 2.42
SINCE OCT 1 0.30 2.91 -2.61 2.42
SINCE JAN 1 21.89 26.31 -4.42 18.69
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 14 -1 14
MONTH TO DATE 227 261 -34 255
SINCE SEP 1 360 363 -3 306
SINCE JUL 1 385 418 -33 330
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 4 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 600 AM
LOWEST 57 900 PM
AVERAGE 77
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 65 1998
MINIMUM TEMPERATURE (F) 45 29 1954
SUNRISE AND SUNSET
OCTOBER 26 2026.......SUNRISE 744 AM PDT SUNSET 601 PM PDT
OCTOBER 27 2026.......SUNRISE 746 AM PDT SUNSET 600 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-260116:SEA:2026-10-25:interim · iem-afos · IEM archive
SHA-256 e92278866109d195f41597c5f878874116ead7512d5b7cfc3ae4d0ed74b9eb58
Product text
CDUS46 KSEW 260116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SUN OCT 25 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 25 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 58 356 PM 67 1965 57 1 56
1982
2015
MINIMUM 46 724 AM 31 1954 45 1 45
AVERAGE 52 51 1 51
PRECIPITATION (IN)
TODAY 0.22 1.16 1986 0.16 0.06 0.32
MONTH TO DATE 0.30 2.91 -2.61 2.42
SINCE OCT 1 0.30 2.91 -2.61 2.42
SINCE JAN 1 21.89 26.31 -4.42 18.69
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 14 -1 14
MONTH TO DATE 227 261 -34 255
SINCE SEP 1 360 363 -3 306
SINCE JUL 1 385 418 -33 330
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 3 RESULTANT WIND DIRECTION E (70)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 600 AM
LOWEST 60 400 PM
AVERAGE 79
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 65 1998
MINIMUM TEMPERATURE (F) 45 29 1954
SUNRISE AND SUNSET
OCTOBER 25 2026.......SUNRISE 743 AM PDT SUNSET 603 PM PDT
OCTOBER 26 2026.......SUNRISE 744 AM PDT SUNSET 601 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/2026-10-25 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.