NWS CLI archive · settlement source
CLISEA · 시애틀 · America/Los_Angeles · ← 2026-10-21 · 2026-10-23 → · All dates for KSEA · JSON · METAR-derived record
Final issued 2026-10-23 04:27:00 EDT · Product id iem:CDUS46-KSEW-230827:SEA:2026-10-22:final · IEM archive
Product id iem:CDUS46-KSEW-230827:SEA:2026-10-22:final · iem-afos · IEM archive
SHA-256 39c7f1cf5219b4b7a22baf92e60cbfa5ab5760f353da002c8406d20ff8c71882
Product text
CDUS46 KSEW 230827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT FRI OCT 23 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 22 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 60 245 PM 70 1965 58 2 62
MINIMUM 46 1159 PM 34 1950 46 0 45
AVERAGE 53 52 1 54
PRECIPITATION (IN)
YESTERDAY T 1.26 2014 0.15 -0.15 T
MONTH TO DATE 0.08 2.44 -2.36 1.06
SINCE OCT 1 0.08 2.44 -2.36 1.06
SINCE JAN 1 21.67 25.84 -4.17 17.33
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 12 13 -1 11
MONTH TO DATE 183 220 -37 220
SINCE SEP 1 316 322 -6 271
SINCE JUL 1 341 377 -36 295
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 7 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 100 AM
LOWEST 62 300 PM
AVERAGE 79
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 73 1965
1992
MINIMUM TEMPERATURE (F) 45 32 1953
SUNRISE AND SUNSET
OCTOBER 23 2026.......SUNRISE 740 AM PDT SUNSET 606 PM PDT
OCTOBER 24 2026.......SUNRISE 741 AM PDT SUNSET 605 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-230118:SEA:2026-10-22:interim · iem-afos · IEM archive
SHA-256 da9834c61183bc6b13cc7c3c9d1fb1526a97f5ecf3c44bf1337aeb3fb47895c7
Product text
CDUS46 KSEW 230118
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
618 PM PDT THU OCT 22 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 22 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 60 245 PM 70 1965 58 2 62
MINIMUM 46 126 AM 34 1950 46 0 45
AVERAGE 53 52 1 54
PRECIPITATION (IN)
TODAY 0.00 1.26 2014 0.15 -0.15 T
MONTH TO DATE 0.08 2.44 -2.36 1.06
SINCE OCT 1 0.08 2.44 -2.36 1.06
SINCE JAN 1 21.67 25.84 -4.17 17.33
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 12 13 -1 11
MONTH TO DATE 183 220 -37 220
SINCE SEP 1 316 322 -6 271
SINCE JUL 1 341 377 -36 295
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 8 RESULTANT WIND DIRECTION N (0)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.5
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 100 AM
LOWEST 62 300 PM
AVERAGE 79
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 73 1965
1992
MINIMUM TEMPERATURE (F) 45 32 1953
SUNRISE AND SUNSET
OCTOBER 22 2026.......SUNRISE 738 AM PDT SUNSET 608 PM PDT
OCTOBER 23 2026.......SUNRISE 740 AM PDT SUNSET 606 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/2026-10-22 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.