NWS CLI archive · settlement source
CLISEA · 시애틀 · America/Los_Angeles · ← 2026-10-13 · 2026-10-15 → · All dates for KSEA · JSON · METAR-derived record
Final issued 2026-10-15 04:27:00 EDT · Product id iem:CDUS46-KSEW-150827:SEA:2026-10-14:final · IEM archive
Product id iem:CDUS46-KSEW-150827:SEA:2026-10-14:final · iem-afos · IEM archive
SHA-256 676f5ae8be7b00a1a57ae9628e72726be45f85b9306082b1734ef802a4ee4513
Product text
CDUS46 KSEW 150827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU OCT 15 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 14 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 67 201 PM 80 1961 61 6 59
MINIMUM 51 1112 PM 36 1949 47 4 42
AVERAGE 59 54 5 51
PRECIPITATION (IN)
YESTERDAY T 1.36 2016 0.12 -0.12 0.00
MONTH TO DATE 0.06 1.38 -1.32 0.60
SINCE OCT 1 0.06 1.38 -1.32 0.60
SINCE JAN 1 21.65 24.78 -3.13 16.87
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 6 11 -5 14
MONTH TO DATE 107 123 -16 120
SINCE SEP 1 240 225 15 171
SINCE JUL 1 265 280 -15 195
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 0 RESULTANT WIND DIRECTION SE (140)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1100 PM
LOWEST 60 1200 AM
AVERAGE 75
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 77 1991
2022
MINIMUM TEMPERATURE (F) 47 35 1946
1952
SUNRISE AND SUNSET
OCTOBER 15 2026.......SUNRISE 728 AM PDT SUNSET 621 PM PDT
OCTOBER 16 2026.......SUNRISE 730 AM PDT SUNSET 619 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-150127:SEA:2026-10-14:interim · iem-afos · IEM archive
SHA-256 70eefc6654c6d6b472bd68ee8b5aec99a39bb235ad558618f85849e9b5726460
Product text
CDUS46 KSEW 150127
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
627 PM PDT WED OCT 14 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 14 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 67 201 PM 80 1961 61 6 59
MINIMUM 55 441 AM 36 1949 47 8 42
AVERAGE 61 54 7 51
PRECIPITATION (IN)
TODAY T 1.36 2016 0.12 -0.12 0.00
MONTH TO DATE 0.06 1.38 -1.32 0.60
SINCE OCT 1 0.06 1.38 -1.32 0.60
SINCE JAN 1 21.65 24.78 -3.13 16.87
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 4 11 -7 14
MONTH TO DATE 105 123 -18 120
SINCE SEP 1 238 225 13 171
SINCE JUL 1 263 280 -17 195
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 S (190)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 600 AM
LOWEST 60 1200 AM
AVERAGE 68
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 77 1991
2022
MINIMUM TEMPERATURE (F) 47 35 1946
1952
SUNRISE AND SUNSET
OCTOBER 14 2026.......SUNRISE 727 AM PDT SUNSET 623 PM PDT
OCTOBER 15 2026.......SUNRISE 728 AM PDT SUNSET 621 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/2026-10-14 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.