537
CDUS46 KSEW 300116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT TUE SEP 29 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 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 63 227 PM 81 1992 67 -4 63
1993
MINIMUM 55 1202 AM 37 1954 51 4 56
AVERAGE 59 59 0 60
PRECIPITATION (IN)
TODAY T 0.92 1951 0.07 -0.07 0.21
MONTH TO DATE 1.45 1.53 -0.08 0.70
SINCE OCT 1 38.36 39.26 -0.90 29.61
SINCE JAN 1 21.58 23.32 -1.74 16.21
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 6 6 0 5
MONTH TO DATE 124 97 27 47
SINCE SEP 1 124 97 27 47
SINCE JUL 1 149 152 -3 71
COOLING
TODAY 0 0 0 0
MONTH TO DATE 2 30 -28 34
SINCE SEP 1 2 30 -28 34
SINCE JAN 1 267 263 4 328
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 14.6
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 900 AM
LOWEST 67 200 AM
AVERAGE 80
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 82 1992
MINIMUM TEMPERATURE (F) 51 36 1950
SUNRISE AND SUNSET
SEPTEMBER 29 2026.....SUNRISE 706 AM PDT SUNSET 652 PM PDT
SEPTEMBER 30 2026.....SUNRISE 707 AM PDT SUNSET 650 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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